New addition compounds of dialkylboranes and aluminum methoxide. New practical synthesis of dialkylboranes and of mixed trialkylboranes containing functional groups
A facile synthesis of α-chloroboronic esters via the base induced reaction of α,α-dichloromethyl methyl ether with hindered borinic esters
作者:Bruce A. Carlson、Jean-Jacques Katz、Herbert C. Brown
DOI:10.1016/s0022-328x(00)82340-2
日期:1974.3
Treatment of hindered borinic esters, R2 BOR′; with an equimolar quantity of α,α-dichloromethyl methyl ether and lithium triethylcarboxide yields the α-chloroboronic esters, R2 CHClB(OCH3)OR′, in excellent yields. In cases where the steric requirements of R are not sufficient, the steric requirements of R′ can be increased to achieve the synthesis.
Hydroboration. 52. Monohaloborane-methyl sulfide adducts as new reagents for the hydroboration of alkenes. A convenient synthesis of dialkylhaloboranes and their derivatives for organic synthesis
作者:Herbert C. Brown、N. Ravindran、Surendra U. Kulkarni
DOI:10.1021/jo01328a017
日期:1979.7
Hydroboration. XL. Hydroboration of alkenes and alkynes with monochloroborane etherates. Convenient procedures for the preparation of dialkyl-, monoalkyl-, and dialkenylchloroboranes and their derivatives