Chemoselective synthesis of dialkyl 2-(tert-butylamino)- 6-methyl-5-trifluoroacetyl-4H-pyran-3,4-dicarboxylates
作者:S. Asghari、M. Zaty、S. Safiri
DOI:10.1007/s11172-005-0032-y
日期:2004.8
The reaction of tert-butyl isocyanide with dialkyl acetylenedicarboxylate affords a highly reactive 1 : 1 intermediate which can be trapped by 1,1,1-trifluoropentane-2,4-dione.