Name: (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole, is researched, Molecular C38H24F4O4P2, CAS is 503538-69-0, about Asymmetric Hydrogenation of α-Purine Nucleobase-Substituted Acrylates with Rhodium Diphosphine Complexes: Access to Tenofovir Analogues. Author is Sun, Huan-Li; Chen, Fei; Xie, Ming-Sheng; Guo, Hai-Ming; Qu, Gui-Rong; He, Yan-Mei; Fan, Qing-Hua.
The first asym. hydrogenation of α-purine nucleobase-substituted α,β-unsaturated esters, catalyzed by a chiral rhodium (R)-Synphos catalyst, has been developed. A wide range of mono- and disubstituted acrylates were successfully hydrogenated under very mild conditions in high yields with good to excellent enantioselectivities (up to 99% ee). This method provides a convenient approach to the synthesis of a new kind of optically pure acyclic nucleoside and Tenofovir analogs.
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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem