First total synthesis of optically pure methyl (2Z, 8S, 9R)-8,9-epoxydeca-4,6-diyn-2-en-10-hydroxy-1-oate and its acetate, two naturally-occurring antifeedants
摘要:
The first total synthesis of the naturally occurring antifeedants 1a, and 1b is described, starting from optically pure (2S, 3R)-4-butyryloxy-2,3-epoxybutan-1-ol 2. (2R, 3S)-5-Bromo-2,3-epoxy-4-pentyn-1-ol 4 is the key intermediate in the synthesis.
First total synthesis of optically pure methyl (2Z, 8S, 9R)-8,9-epoxydeca-4,6-diyn-2-en-10-hydroxy-1-oate and its acetate, two naturally-occurring antifeedants
摘要:
The first total synthesis of the naturally occurring antifeedants 1a, and 1b is described, starting from optically pure (2S, 3R)-4-butyryloxy-2,3-epoxybutan-1-ol 2. (2R, 3S)-5-Bromo-2,3-epoxy-4-pentyn-1-ol 4 is the key intermediate in the synthesis.
A general access to optically pure epoxypolyynes: asymmetric synthesis of antifeedant natural products
作者:D. Grandjean、P. Pale、J. Chuche
DOI:10.1016/s0040-4020(01)82372-3
日期:1993.6
A general asymmetric approach toward cis-epoxypolyynes is described using optically pure (2R, 3S)-5-bromo-2,3-epoxy-4-pentyn-1-ol 1a as the key intermediate. From this intermediate, the synthesis of 2 epoxy polyyne natural products was carried out in 6 steps with a 42% overall yield.