SYNTHESIS OF 1-ACYLAMINO-1-(TRIMETHYLSILOXY)ALKANES BY TRIMETHYLSILYLTRIFLUOROMETHANESULFONATE-CATALYZED ADDITION OF BIS(TRIMETHYLSILYL)AMIDES TO ALDEHYDES
Ap. Johnson et al., SYNTHESIS OF 1-ACYLAMINO-1-(TRIMETHYLSILOXY)ALKANES BY TRIMETHYLSILYLTRIFLUOROMETHANESULFONATE-CATALYZED ADDITION OF BIS(TRIMETHYLSILYL)AMIDES TO ALDEHYDES, Journal of the Chemical Society. Perkin transactions. I, (9), 1996, pp. 883-893
Bis(trimethylsilyl)formamide reacts with aldehydes in refluxing chloro
form, or at room temperature with catalysis by trimethylsilyl trifluor
omethanesulfonate, to give 1-acylamino-1-(trimethylsiloxy)alkanes; sim
ilar results are obtained with other bis(trimethylsilyl)amides, but su
rprisingly not with bis(trimethylsilyl)acetamide, and addition of bis(
trimethylsilyl)formamide to ketones and acetals can also be accomplish
ed using TMS triflate as catalyst.