Remarkable regioselective hydroboration of terminal alkenes by calcium borohydride
摘要:
Calcium borohydride is found to hydroborate unsaturated systems in the presence of ethyl acetate. The reaction exhibits remarkable selectivity towards terminal double bonds. Several Z-11-alken-1-ol pheromones are synthesized using this method.
S-acylation is not restricted to palmitate but it includes shorter, longer, and unsaturated fatty acids. However, the diversity of this protein modification has not been fully explored. Herein, we report a chemical probe that combined with MS-based analysis allows the rapid detection and quantification of fatty acids linked to proteins. We have used this approach to profile the S-acylome and to show that the
The regioselective hydrogenation of unsaturatedcompounds was carried out by catalysis with platinum-zeolite coupled with an organosilicon alkoxide using a chemical vapor deposition method (CVD-modified catalyst). In hydrogenation of a mixture of 1-nonene and trans-4-nonene by this catalyst, the reaction rate of 1-nonene was much greater than that of trans-4-nonene. In particular, when diphenyldiethoxysilane
Remarkable regioselective hydroboration of terminal alkenes by calcium borohydride
作者:S. Narasimhan、K.Ganeshwar Prasad、S. Madhavan
DOI:10.1016/0040-4039(94)02441-d
日期:1995.2
Calcium borohydride is found to hydroborate unsaturated systems in the presence of ethyl acetate. The reaction exhibits remarkable selectivity towards terminal double bonds. Several Z-11-alken-1-ol pheromones are synthesized using this method.