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31.19

Hoá học

Tổng hợp bất đối xứng của (R)-2-[3-(methoxymethoxy)propyl]-3,3-diphenyl-l-tosyl-l,3-azasilinan-6-one

Asymmetric synthesis of (R)-2-[3-(methoxymethoxy)propyl]-3,3-diphenyl-l-tosyl-l,3-azasilinan-6-one

Tạp chí khoa học (Đại học Sư phạm Hà Nội)

2014

9

3-10

0868-3179

Azasilanes have excellent bioactivities; however, asymmetric synthesis of azasilinan-6-one with a substitution at the second potion has been investigated very little. In this paper, (R)-2-[3-(methoxymethoxy)propyl]-3,3-diphenyl-I-tosyl-I,3-azasilinan-6-one was successfully synthesized. The chiral center of silylsulfinamide was prepared by the addition of silyl lithium to (R)-Davis' chiral sulfinimine. Cyc1ization of delta-amino carboxylic acid gave 1,3-azasilinan-6-one that can be an important product to synthesize 2-substituted 1,3-azasilinan rings. Structures of all new compounds were confirmed, by IR, 1H and 13C-NMR, along with the exact mass.

TTKHCNQG, CVv 157