反应详情

温度

-78 °C

On the other hand, 442 mg (1.2 mmol) of 3-t-butyldimethylsiloxy-1-iodo-trans-1-octene was added to 2 ml of anhydrous hexane, and 1 ml (1.2 mmol) of a 1.2 M hexane solution of n-butyllithium was added. The mixture was stirred at -78° C for 30 minutes in an atmosphere of nitrogen to afford an anhydrous hexane solution of 3-t-butyldimethylsiloxy-1-lithio-trans-1-octene. The resulting solution was added dropwise to the anhydrous diethyl ether solution of copper pentylide prepared previously, and the mixture was stirred at -78° C for 30 minutes in an atmosphere of nitrogen to afford a solution of an organic copper lithium compound of the following formula ##STR20##

1. additionwas added