反応 #93781

反応方程式

Et3SiH

allyl chloride

→

Et3SiCl

収率 42.0%

Et3SiCH2CH2CH2Cl

収率 15.5%

反応条件

後処理

1. 1
   その他at 19° C
2. 2
   温度by heating at 70° C. for 17 hr
3. 3
   その他The incomplete reaction
4. 4
   workup.DISTILLATIONdistilled

実験手順

In a 100 ml apparatus, there were combined 11.6 g (0.1 mol) of Et3SiH, 7.7 g (0.1 mol of allyl chloride, and 0.05 ml Pt catalyst solution at 19° C. After stirring 1 hr, temperature had increased to 27° C., followed by heating at 70° C. for 17 hr. The incomplete reaction was vacuum distilled, yielding 8.9 g (42%) of Et3SiCl, and 3.0 g (15.5%) of Et3SiCH2CH2CH2Cl. The Et3SiCH2CH2C2Cl/Et3SiCl molar selectivity ratio was 0.37. This example shows that the unpromoted reaction between Et3SiH and CH2 =CHCH2Cl is very slow.

出典