1630043-93-4Relevant articles and documents
Synthesis of N,N-dialkyl-5(or 10)-oxobenzo[B][1,8 or 1,7(or 1,6)]naphthyridine-10(5H)(or 5(10H))-carbothioamides based on the reaction of the respective (chloropyridinyl)(2-isothiocyanatophenyl)methanones with secondary amines
Kobayashi, Kazuhiro,Nakagawa, Kazuhiro,Inouchi, Hiroki
, p. 1687 - 1695 (2014/07/08)
The addition of secondary amines to (2-chloropyridin-3-yl)(2- isothiocyanatophenyl)methanone, derived from 2-chloropyridine and N-(2- formylphenyl)formamide, followed by treatment of the resulting thiourea intermediates with sodium hydride has proven to provide a method for the synthesis of N,N-dialkyl-5-oxobenzo[b][1,8]naphthyridine-10(5H)- carbothioamides. Similarly, N,N-dialkyl-5-oxobenzo[b][1,7]naphthyridine- 10(5H)-carbothioamides and N,N-dialkyl-10-oxobenzo[b][1,6]naphthyridine- 5(10H)-carbothioamides can be prepared from the respective (chloropyridinyl)(2- isothiocyanatophenyl)methanones.