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, Chemical Science called Efficient synthesis of chiral 2,3-dihydro-benzo[b]thiophene 1,1-dioxides via Rh-catalyzed hydrogenation, Author is Liu, Gongyi; Zhang, Heng; Huang, Yi; Han, Zhengyu; Liu, Gang; Liu, Yuanhua; Dong, Xiu-Qin; Zhang, Xumu, 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, Product Details of 36620-11-8.
Rh-catalyzed asym. hydrogenation of prochiral substituted benzo[b]thiophene 1,1-dioxides was successfully developed, affording various chiral 2,3-dihydrobenzo[b]thiophene 1,1-dioxides I (R = H, 6-MeO; R1 = C6H5, 4-MeOC6H4, 4-FC6H4, etc.; R2 = C6H5, 4-MeOC6H4, 3-H3CC6H4, etc.) with high yields and excellent enantioselectivities (up to 99% yield and >99% ee). In particular, for challenging substrates, such as aryl substituted substrates with sterically hindered groups and alkyl substituted substrates, the reaction proceeded smoothly in catalytic system with excellent results. The gram-scale asym. hydrogenation proceeded well with 99% yield and 99% ee in the presence of 0.02 mol% (S/C = 5000) catalyst loading. The possible hydrogen-bonding interaction between the substrate and the ligand may play an important role in achieving high reactivity and excellent enantioselectivity.
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Quinuclidine – Wikipedia,
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