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Recommanded Product: 36620-11-8. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Bis(norbornadiene)rhodium (I) tetrafluoroborate, is researched, Molecular C14H8BF4Rh, CAS is 36620-11-8, about (Z)-Selective Hydroboration of Terminal Alkynes Catalyzed by a PSP-Pincer Rhodium Complex. Author is Lyu, Yanzong; Toriumi, Naoyuki; Iwasawa, Nobuharu.

A highly (Z)-selective hydroboration of terminal alkynes was achieved using a thioxanthene-based PSP-pincer Rh catalyst. This hydroboration exhibited good chemoselectivity toward alkynes over carbonyl compounds such as ketones and aldehydes. The mechanistic studies indicated the involvement of Rh-vinylidene intermediates, and the high (Z)-selectivity could be attributed to the rigid and electron-rich nature of the PSP-Rh catalyst.

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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 Facile access to chiral 4-substituted chromanes through Rh-catalyzed asymmetric hydrogenation, published in 2020-07-31, which mentions a compound: 36620-11-8, Name is Bis(norbornadiene)rhodium (I) tetrafluoroborate, Molecular C14H8BF4Rh, Electric Literature of C14H8BF4Rh.

Rh/ZhaoPhos-catalyzed asym. hydrogenation of a series of (E)-2-(chroman-4-ylidene)acetates I (R = H, Cl, F, MeO; R1 = CO2Me, CO2Et, CO2iPr) was successfully developed to prepare various chiral 4-substituted chromanes II with high yields and excellent enantioselectivities (up to 99% yield, 98% ee). Moreover, the gram-scale hydrogenation could be performed well in the presence of 0.02 mol% catalyst loading (TON = 5000) and the hydrogenation product II (R = H, R1 = CO2Et) was easily converted to access other important compounds, II (R = H, R1 = CO2H, CH2OH) which demonstrated the synthetic utility of this asym. catalytic methodol.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Bis(norbornadiene)rhodium (I) tetrafluoroborate(SMILESS: [F-][B+3]([F-])([F-])[F-].C12=C3[Rh+]14567(C8=C5C9C6=C7C8C9)C%10=C4C2CC3%10,cas:36620-11-8) is researched.Synthetic Route of C8H9ClN2O. The article 《Ligand-Controlled Regiodivergent Enantioselective Rhodium-Catalyzed Alkene Hydroboration》 in relation to this compound, is published in Angewandte Chemie, International Edition. Let’s take a look at the latest research on this compound (cas:36620-11-8).

Regiocontrol in the Rh-catalyzed boration of vinyl arenes is typically dominated by the presence of the conjugated aryl substituent. However, small differences in TADDOL-derived chiral monophosphite ligands can override this effect and direct Rh-catalyzed hydroboration of β-aryl and β-heteroaryl methylidenes by pinacolborane to selectively produce either chiral primary or tertiary borated products. The regiodivergent behavior is coupled with enantiodivergent addition of the borane. The nature of the TADDOL backbone substituents and that of the phosphite moiety function synergistically to direct the sense and extent of regioselectivity and enantioinduction. Twenty substrates undergo each reaction mode with regioselectivity values reaching >20:1 and enantiomer ratios reaching up to 98:2. A variety of subsequent transformations illustrate the potential utility of each product.

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In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Large Scale Practical Synthesis of Enantiomerically Pure cis-4-Amino-3-fluoro-1-methylpiperidine via Rhodium-Catalyzed Asymmetric Hydrogenation of a Tetrasubstituted Fluoroalkene, published in 2021-03-19, which mentions a compound: 36620-11-8, mainly applied to amino fluoro methylpiperidine enantioselective regioselective chemoselective green preparation scaleup; tetrasubstituted fluoroalkene hydrogenation rhodium catalyst, Product Details of 36620-11-8.

The development of multi kilo-gram scale green and economical synthetic route of enantiomerically pure cis-4-amino-3-fluoro-1-methylpiperidine I was described. The synthesis featured a highly regio-, chemo- and enantioselective asym. hydrogenation of N-benzyl-4-((tert-butoxycarbonyl)amino)-5-fluoro-tetrahydropyridinium chloride. No purification or chiral enrichment was necessary due to high selectivity resulting from proper selection of catalyst system Rh(NBD)2(BF4) and Walphos 003. The crude product N-benzyl piperidine was carried directly to N-methylpiperidine utilizing a highly effective one-pot debenzylation and reductive amination protocol. The target compound 1•2HCl was prepared in 66-68% overall yield with >99% ee and >98.5% purity from available compound 3-fluoropyridin-4-amine with a Process Mass Intensity of 150.

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SDS of cas: 36620-11-8. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Bis(norbornadiene)rhodium (I) tetrafluoroborate, is researched, Molecular C14H8BF4Rh, CAS is 36620-11-8, about Ligand-Controlled Regiodivergent Enantioselective Rhodium-Catalyzed Alkene Hydroboration. Author is Bochat, Andrew J.; Shoba, Veronika M.; Takacs, James M..

Regiocontrol in the Rh-catalyzed boration of vinyl arenes is typically dominated by the presence of the conjugated aryl substituent. However, small differences in TADDOL-derived chiral monophosphite ligands can override this effect and direct Rh-catalyzed hydroboration of β-aryl and β-heteroaryl methylidenes by pinacolborane to selectively produce either chiral primary or tertiary borated products. The regiodivergent behavior is coupled with enantiodivergent addition of the borane. The nature of the TADDOL backbone substituents and that of the phosphite moiety function synergistically to direct the sense and extent of regioselectivity and enantioinduction. Twenty substrates undergo each reaction mode with regioselectivity values reaching >20:1 and enantiomer ratios reaching up to 98:2. A variety of subsequent transformations illustrate the potential utility of each product.

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Name: Bis(norbornadiene)rhodium (I) tetrafluoroborate. 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: Bis(norbornadiene)rhodium (I) tetrafluoroborate, is researched, Molecular C14H8BF4Rh, CAS is 36620-11-8, about A practical strategy to access chiral α-aryloxy carboxylic acids through ion-pairing directed asymmetric hydrogenation. Author is Yao, Lin; Ma, Haixia; Nie, Zhuang; Nie, Huifang; Zhang, Dongxu; Wei, Zhao; Shen, Zhanhong; Chen, Weiping; Jiang, Ru; Zhang, Shengyong.

A series of optically active α-aryloxy carboxylic acids I [R1 = n-Bu, 2-furyl, 4-F3CC6H4, etc.; R2 = H, 4-ClC6H4, 4-PhC6H4, etc.] was obtained via Chenphos/Rh catalyzed highly efficient asym. hydrogenation. The proposed ion-pairing interaction between ligand and substrate played a vital role in achieving high enantioselectivity.

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Li, Wendian; Yang, Hailong; Li, Ruihao; Lv, Hui; Zhang, Xumu published the article 《Kinetic Resolution of Racemic 3,4-Disubstituted 1,4,5,6-Tetrahydropyridine and 3,4-Disubstituted 1,4- Dihydropyridines via Rh-Catalyzed Asymmetric Hydrogenation》. Keywords: piperidine tetrahydropyridine preparation; tetrahydropyridine dihydropyridine asym hydrogenation rhodium catalyst.They researched the compound: Bis(norbornadiene)rhodium (I) tetrafluoroborate( cas:36620-11-8 ).Recommanded Product: 36620-11-8. 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:36620-11-8) here.

Kinetic resolution of racemic 3,4-disubstituted 1,4,5,6-tetrahydropyridines and 3,4-disubstituted 1,4-dihydropyridines was developed by Rh-catalyzed asym. hydrogenation, affording chiral 3,4-disubstituted piperidines and chiral 3,4-disubstituted 1,4,5,6-tetrahydropyridines with high selectivity factors (s = up to 1057). Remarkably, all four stereoisomers of 3,4-disubstituted piperidine can be easily prepared using this method. Furthermore, the synthetic utility of this methodol. was demonstrated by efficient synthesis of antidepressant drug (-)-paroxetine.

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Recommanded Product: 36620-11-8. 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. Compound: Bis(norbornadiene)rhodium (I) tetrafluoroborate, is researched, Molecular C14H8BF4Rh, CAS is 36620-11-8, about The Discovery of Two Novel Classes of 5,5-Bicyclic Nucleoside-Derived PRMT5 Inhibitors for the Treatment of Cancer.

Protein arginine methyltransferase 5 (PRMT5) is a type II arginine methyltransferase that catalyzes the post-translational sym. dimethylation of protein substrates. PRMT5 plays a critical role in regulating biol. processes including transcription, cell cycle progression, RNA splicing, and DNA repair. As such, dysregulation of PRMT5 activity is implicated in the development and progression of multiple cancers and is a target of growing clin. interest. Described herein are the structure-based drug designs, robust synthetic efforts, and lead optimization strategies toward the identification of two novel 5,5-fused bicyclic nucleoside-derived classes of potent and efficacious PRMT5 inhibitors. Utilization of compound docking and strain energy calculations inspired novel designs, and the development of flexible synthetic approaches enabled access to complex chemotypes with five contiguous stereo-centers. Addnl. efforts in balancing bioavailability, solubility, potency, and CYP3A4 inhibition led to the identification of diverse lead compounds with favorable profiles, promising in vivo activity, and low human dose projections.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Stereoelectronic Effects in Ligand Design: Enantioselective Rhodium-Catalyzed Hydrogenation of Aliphatic Cyclic Tetrasubstituted Enamides and Concise Synthesis of (R)-Tofacitinib》. Authors are Li, Chengxi; Wan, Feng; Chen, Yuan; Peng, Henian; Tang, Wenjun; Yu, Shu; McWilliams, J. Christopher; Mustakis, Jason; Samp, Lacey; Maguire, Robert J..The article about the compound:Bis(norbornadiene)rhodium (I) tetrafluoroboratecas:36620-11-8,SMILESS:[F-][B+3]([F-])([F-])[F-].C12=C3[Rh+]14567(C8=C5C9C6=C7C8C9)C%10=C4C2CC3%10).COA of Formula: C14H8BF4Rh. Through the article, more information about this compound (cas:36620-11-8) is conveyed.

We herein report the development of a conformationally defined, electron-rich, C2-sym., P-chiral bisphosphorus ligand, ArcPhos, by taking advantage of stereoelectronic effects in ligand design. With the Rh-ArcPhos catalyst, excellent enantioselectivities and unprecedentedly high turnovers (TON up to 10,000) were achieved in the asym. hydrogenation of aliphatic carbocyclic and heterocyclic tetrasubstituted enamides, to generate a series of chiral cis-2-alkyl-substituted carbocyclic and heterocyclic amine derivatives in excellent enantiomeric ratios. This method also enabled an efficient and practical synthesis of the Janus kinase inhibitor (R)-tofacitinib.

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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, Non-U.S. Gov’t, Journal of Organic Chemistry called Access to α-Aminophosphonic Acid Derivatives and Phosphonopeptides by [Rh(P-OP)]-Catalyzed Stereoselective Hydrogenation, Author is Fernandez-Perez, Hector; Lenartowicz, Pawel; Carreras, Lucas; Grabulosa, Arnald; Kafarski, Pawel; Vidal-Ferran, Anton, which mentions a compound: 36620-11-8, SMILESS is [F-][B+3]([F-])([F-])[F-].C12=C3[Rh+]14567(C8=C5C9C6=C7C8C9)C%10=C4C2CC3%10, Molecular C14H8BF4Rh, COA of Formula: C14H8BF4Rh.

The hydrogenation of N-substituted vinylphosphonates using rhodium complexes derived from P-OP ligands L1, ent-L1 or (R,R)-Me-DuPHOS as catalysts has been successfully accomplished, achieving very high levels of stereoselectivity (up to 99% ee or de). The described synthetic strategy allowed for the efficient preparation of alpha-aminophosphonic acid derivatives, e.g. I, and phosphonopeptides, e.g. II, which are valuable building blocks for the preparation of biol. relevant mols.

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