Category: 221012-82-4

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine(SMILESS: COC(C=C1P(C2=CC=CC=C2)C3=CC=CC=C3)=NC(OC)=C1C4=C(OC)N=C(OC)C=C4P(C5=CC=CC=C5)C6=CC=CC=C6,cas:221012-82-4) is researched.HPLC of Formula: 138984-26-6. The article 《Enantioselective bis-alkoxycarbonylation of styrene catalyzed by novel chiral dipyridylphosphine cationic palladium(II) complexes》 in relation to this compound, is published in Journal of Molecular Catalysis A: Chemical. Let’s take a look at the latest research on this compound (cas:221012-82-4).

The preparation of new palladium complexes that are composed of a series of chiral dipyridylphosphines have been described. The structure of the complex [{(R)-1}Pd(H2O)2](OTf)2 was unambiguously determined by single-crystal X-ray diffractometry. These complexes were found to be effective in the asym. bis-methoxycarbonylation of styrene, reaching up to 84% e.e. and 79% chemoselectivity for dimethyl-2-phenylsuccinate (DMPS) under the optimal conditions. In addition, the complexes exhibited almost identical enantioselectivity on DMPS.

Compound(221012-82-4)Product Details of 221012-82-4 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound((R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine), if you are interested, you can check out my other related articles.

Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Asymmetric hydrogenation of quinolines with high substrate/catalyst ratio, published in 2007-02-14, which mentions a compound: 221012-82-4, Name is (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine, Molecular C38H34N2O4P2, HPLC of Formula: 221012-82-4.

The chiral diphosphinite ligand derived from (R)-1,1′-spirobiindane-7,7′-diol has been found to be highly effective in the Ir-catalyzed asym. hydrogenation of quinolines with high substrate/catalyst ratio (up to 5000) and high enantioselectivity (up to 94% ee).

Here is just a brief introduction to this compound(221012-82-4)HPLC of Formula: 221012-82-4, more information about the compound((R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine) is in the article, you can click the link below.

Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

Yasui, Takeshi; Tatsumi, Rine; Yamamoto, Yoshihiko published an article about the compound: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine( cas:221012-82-4,SMILESS:COC(C=C1P(C2=CC=CC=C2)C3=CC=CC=C3)=NC(OC)=C1C4=C(OC)N=C(OC)C=C4P(C5=CC=CC=C5)C6=CC=CC=C6 ).Computed Properties of C38H34N2O4P2. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:221012-82-4) through the article.

Dual cobalt and photoredox catalysis enabled [2+2+2] cycloaddition of enediynes to produce tricyclic cyclohexadienes bearing a quaternary bridgehead carbon was reported. A variety of enediynes were used, and the corresponding cyclohexadienes were obtained in good to high yields. The use of a chiral ligand, (S)-Segphos, enabled a highly enantioselective reaction allowing access to highly enantio-enriched cyclohexadienes.

Here is just a brief introduction to this compound(221012-82-4)Computed Properties of C38H34N2O4P2, more information about the compound((R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine) is in the article, you can click the link below.

Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

He, Cheng-Yu; Li, Qing-Hua; Wang, Xin; Wang, Feng; Tian, Ping; Lin, Guo-Qiang published the article 《Copper-Catalyzed Asymmetric Borylative Cyclization of Cyclohexadienone-Containing 1,6-Dienes》. Keywords: copper catalyzed asym borylative cyclization cyclohexadienone diene; borylated tetrahydrobenzofuranone preparation; crystal structure borylated tetrahydrobenzofuranone; mol structure borylated tetrahydrobenzofuranone.They researched the compound: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine( cas:221012-82-4 ).Reference of (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:221012-82-4) here.

Due to the low reactivity of 1,6-dienes and the challenge of selectively differentiating such two olefins, the development of metal-catalyzed asym. cyclization of 1,6-dienes remains largely underdeveloped. Herein, the authors describe the 1st Cu(I)-catalyzed asym. borylative cyclization of cyclohexadienone-tethered terminal alkenes (1,6-dienes) via a tandem process: the regioselective borocupration of the electron-rich terminal alkene and subsequent conjugate addition of stereospecific secondary alkyl-Cu(I) to the electron-deficient cyclohexadienone, affording enantioenriched bicyclic skeletons bearing three contiguous stereocenters in all cis-form. Meanwhile, this mild catalytic protocol is generally compatible with a wide range of functional groups, which allows further facile conversion of the cyclization products.

From this literature《Copper-Catalyzed Asymmetric Borylative Cyclization of Cyclohexadienone-Containing 1,6-Dienes》,we know some information about this compound(221012-82-4)Reference of (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine, but this is not all information, there are many literatures related to this compound(221012-82-4).

Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

Yu, Bing; Menard, Frederic; Isono, Naohiro; Lautens, Mark published an article about the compound: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine( cas:221012-82-4,SMILESS:COC(C=C1P(C2=CC=CC=C2)C3=CC=CC=C3)=NC(OC)=C1C4=C(OC)N=C(OC)C=C4P(C5=CC=CC=C5)C6=CC=CC=C6 ).Recommanded Product: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:221012-82-4) through the article.

A highly enantioselective allylic substitution of (Z)-but-2-ene-1,4-diol derivatives was developed using a Rh(I) catalyst and arylboronates as nucleophiles. The reaction yields versatile homoallylic alcs. from readily available linear bis-carbonates.

Compound(221012-82-4)Recommanded Product: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine received a lot of attention, and I have introduced some compounds in other articles, similar to this compound((R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine), if you are interested, you can check out my other related articles.

Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

Reference of (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine, is researched, Molecular C38H34N2O4P2, CAS is 221012-82-4, about Polyethylene glycol as an environmentally friendly and recyclable reaction medium for enantioselective hydrogenation. Author is Zhou, Hai-Feng; Fan, Qing-Hua; Tang, Wei-Jun; Xu, Li-Jin; He, Yan-Mei; Deng, Guo-Jun; Zhao, Li-Wen; Gu, Lian-Quan; Chan, Albert S. C..

Polyethylene glycol (PEG) was found to be an inexpensive, non-toxic and recyclable reaction medium for ruthenium- and rhodium-catalyzed asym. hydrogenation of 2-arylacrylic acids (Ru-catalyzed C=C bond reduction), enamides (Rh-catalyzed C=C bond reduction), β-keto esters and simple aromatic ketones (Ru-catalyzed C=O bond reduction). In all cases, high catalytic activities and enantioselectivities have been achieved, which are comparable to those obtained in conventional organic solvent systems. The Ru and Rh catalysts prepared with com. available chiral diphosphine ligands could be readily recycled by simple extraction, as in the case of ionic liquids, and reused up to nine times without obvious loss of catalytic activity and enantioselectivity. The reduced products were obtained from the extracts in high isolated yields. These results indicate that PEGs as new reaction media are attractive alternatives to room temperature ionic liquids

Compound(221012-82-4)Reference of (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine received a lot of attention, and I have introduced some compounds in other articles, similar to this compound((R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine), if you are interested, you can check out my other related articles.

Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

Electric Literature of C38H34N2O4P2. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine, is researched, Molecular C38H34N2O4P2, CAS is 221012-82-4, about Rhodium-Catalyzed Asymmetric [2+2+2] Cycloaddition of 1,6-Enynes with Racemic Secondary Allylic Alcohols through Kinetic Resolution. Author is Suzuki, Shunsuke; Shibata, Yu; Tanaka, Ken.

It has been established that a cationic rhodium(I)/P-phos complex catalyzes the asym. [2+2+2] cycloaddition of 1,6-enynes R1CCCH2ZCH2CH(=CH2)R2 (R1 = Me, Ph, pentyl; R2 = H, Me) with racemic secondary allylic alcs. R3CH(OH)CH=CH2 to produce the corresponding chiral bicyclic cyclohexenes I, possessing three stereogenic centers, as a single diastereomer with excellent ee values. Mechanistic experiments revealed that the present cycloaddition proceeds through the kinetic resolution of the racemic secondary allylic alcs., in which one enantiomer preferentially reacts with the 1,6-enyne.

There is still a lot of research devoted to this compound(SMILES：COC(C=C1P(C2=CC=CC=C2)C3=CC=CC=C3)=NC(OC)=C1C4=C(OC)N=C(OC)C=C4P(C5=CC=CC=C5)C6=CC=CC=C6)Electric Literature of C38H34N2O4P2, and with the development of science, more effects of this compound(221012-82-4) can be discovered.

Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 221012-82-4, is researched, SMILESS is COC(C=C1P(C2=CC=CC=C2)C3=CC=CC=C3)=NC(OC)=C1C4=C(OC)N=C(OC)C=C4P(C5=CC=CC=C5)C6=CC=CC=C6, Molecular C38H34N2O4P2Journal, Advanced Synthesis & Catalysis called Copper-Catalyzed Asymmetric Borylative Cyclization of Cyclohexadienone-Containing 1,6-Dienes, Author is He, Cheng-Yu; Li, Qing-Hua; Wang, Xin; Wang, Feng; Tian, Ping; Lin, Guo-Qiang, the main research direction is copper catalyzed asym borylative cyclization cyclohexadienone diene; borylated tetrahydrobenzofuranone preparation; crystal structure borylated tetrahydrobenzofuranone; mol structure borylated tetrahydrobenzofuranone.Category: quinoxaline.

Due to the low reactivity of 1,6-dienes and the challenge of selectively differentiating such two olefins, the development of metal-catalyzed asym. cyclization of 1,6-dienes remains largely underdeveloped. Herein, the authors describe the 1st Cu(I)-catalyzed asym. borylative cyclization of cyclohexadienone-tethered terminal alkenes (1,6-dienes) via a tandem process: the regioselective borocupration of the electron-rich terminal alkene and subsequent conjugate addition of stereospecific secondary alkyl-Cu(I) to the electron-deficient cyclohexadienone, affording enantioenriched bicyclic skeletons bearing three contiguous stereocenters in all cis-form. Meanwhile, this mild catalytic protocol is generally compatible with a wide range of functional groups, which allows further facile conversion of the cyclization products.

There is still a lot of research devoted to this compound(SMILES：COC(C=C1P(C2=CC=CC=C2)C3=CC=CC=C3)=NC(OC)=C1C4=C(OC)N=C(OC)C=C4P(C5=CC=CC=C5)C6=CC=CC=C6)Category: quinoxaline, and with the development of science, more effects of this compound(221012-82-4) can be discovered.

Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine( cas:221012-82-4 ) is researched.SDS of cas: 221012-82-4.Fujimoto, Hayato; Kusano, Momoka; Kodama, Takuya; Tobisu, Mamoru published the article 《Cyclization of Bisphosphines to Phosphacycles via the Cleavage of Two Carbon-Phosphorus Bonds by Nickel Catalysis》 about this compound( cas:221012-82-4 ) in Organic Letters. Keywords: nickel catalyzed cyclization bisphosphine derivative; phosphanickelacycle naphtho preparation crystal structure; mol structure phosphanickelacycle naphtho; phosphacycle preparation. Let’s learn more about this compound (cas:221012-82-4).

The Ni-catalyzed cyclization of bisphosphine derivatives to form various phosphacycles is reported. The reaction proceeds via the cleavage of two C-P bonds of the bisphosphine. Unlike the previously reported Pd catalysts, the use of Ni as a catalyst allows for the cyclization that requires C(alkyl)-P bond cleavage. A phospha-nickelacycle intermediate was successfully isolated and characterized by x-ray crystallog.

There is still a lot of research devoted to this compound(SMILES：COC(C=C1P(C2=CC=CC=C2)C3=CC=CC=C3)=NC(OC)=C1C4=C(OC)N=C(OC)C=C4P(C5=CC=CC=C5)C6=CC=CC=C6)SDS of cas: 221012-82-4, and with the development of science, more effects of this compound(221012-82-4) can be discovered.

Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Maj, Anna M.; Suisse, Isabelle; Hardouin, Christophe; Agbossou-Niedercorn, Francine researched the compound: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine( cas:221012-82-4 ).SDS of cas: 221012-82-4.They published the article 《Synthesis of new chiral 2-functionalized-1,2,3,4-tetrahydroquinoline derivatives via asymmetric hydrogenation of substituted quinolines》 about this compound( cas:221012-82-4 ) in Tetrahedron. Keywords: quinoline cyclooctadiene iridium chloride chiral bisphosphine ligand iodine hydrogenation; tetrahydroquinoline stereoselective preparation. We’ll tell you more about this compound (cas:221012-82-4).

The asym. hydrogenation of a series of quinolines substituted by a variety of functionalized groups linked to the C2 carbon atom is providing access to optically enriched 2-functionalized 1,2,3,4-tetrahydroquinolines in the presence of in situ generated catalysts from [Ir(cod)Cl]2, a bisphosphine, and iodine. The enantioselectivity levels were as high as 96% ee.

There is still a lot of research devoted to this compound(SMILES：COC(C=C1P(C2=CC=CC=C2)C3=CC=CC=C3)=NC(OC)=C1C4=C(OC)N=C(OC)C=C4P(C5=CC=CC=C5)C6=CC=CC=C6)SDS of cas: 221012-82-4, and with the development of science, more effects of this compound(221012-82-4) can be discovered.

Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider