反应详情

In a procedure analogous to the above paragraph, a Grignard solution was prepared from 68 g (0.55 mol) of chloromethyltrimethylsilane in 150 ml of THF and was then added dropwise at 10° C. to a solution containing chlorodimethylvinylsilane, (available from ABCR GmbH, 7500 Karlsruhe) (2 hours). The mixture was then warmed to room temperature and finally kept at 35° C. for 1 hour, during which a voluminous precipitate formed. Hydrolysis, extraction by shaking with methyl tertbutyl ether, phase separation and working up resulted in 106 g of crude product which on fractionation yielded 68 g (corresponding to 72% of theory) of 3,3,5-trimethyl-3,5-disila-1-hexene (C8H20Si2) at 149°-151° C.

1. additionwas then added dropwise at 10° C. to a solution
2. customa voluminous precipitate formed
3. customHydrolysis, extraction
4. customworking up resulted in 106 g of crude product which on fractionation