HIGHLY STEREOSELECTIVE SYNTHESES OF CONJUGATED E,E-DIENES AND E,Z-DIENES, E-ENYNES AND E-1,2,3-BUTATRIENES VIA ALKENYLBORANE DERIVATIVES

[摘要] A highly selective and potentially general methodology for the synthesis of conjugated E,E- and E,Z-dienes, E-enynes, and E-1,2,3-butatrienes via hydroboration of alkynes is reported. The observed stereoselectivity was > 98-99%.

[发布日期] 1991-01-14