535920-92-4Relevant articles and documents
The surprising nucleophilic addition of aminochlorocarbenes to diethyl acetylenedicarboxylate and to oxalyl chloride: Quinolines and benzo[1,4]diazepines from N-alkylformanilides and oxalyl chloride in the presence of Huenig's base
Cheng, Ying,Yang, Hua,Meth-Cohn, Otto
, p. 3605 - 3610 (2007/10/03)
Vilsmeier reagents derived from N-methylformanilides undergo ready deprotonation with Huenig's base. In xylene, the derived nucleophilic arylaminochlorocarbenes bearing 4-methyl- and 4-methoxy-substituents react with acetylenedicarboxylates to give 2-(2-c