Electrophilicα-p-tolylhydrazonylation of tert-butyl alkanoates and tertiary alkanamides with tert-butylp-tolylazo sulfide
作者:Carlo Dell'Erba、Marino Novi、Giovanni Petrillo、Cinzia Tavani
DOI:10.1016/0040-4020(96)00219-0
日期:1996.4
The reactions of the enolates of tert-butyl alkanoates2 and N, N-dialkylalkanamides3 with tert-butylp-tolylazo sulfide1 in THF furnish good yields of the correspondingα-p-tolylhydrazonylated esters4 and amides5. Results are reported showing the possible transformation of4 and 5 into theN-methylated derivatives8 and 9 and the subsequent deblocking of the protected carbonyl function to the corresponding
的烯醇化物的反应中叔丁基链烷酸酯2和N,N-二dialkylalkanamides 3与叔-butylp-tolylazo硫化物1在THF中correspondingα -对- tolylhydrazonylated酯的配料良好的产率4和酰胺5。报道的结果表明,可能的4和5转化为N-甲基化衍生物8和9,随后将受保护的羰基官能团解封为相应的2-氧代链烷酸酯10和2-氧代链烷酰胺11。图选项