New method for the synthesis of substituted thieno[3,2-b]pyridines and 5H-pyrano[2,3-d]thieno[3,2-b]pyridines derived from them
作者:N. A. Larionova、A. A. Zubarev、L. A. Rodinovskaya、A. M. Shestopalov
DOI:10.1007/s11172-013-0182-2
日期:2013.5
A new highly selective method was developed for the synthesis of substituted thieno[3,2-b]-pyridines based on the domino reaction of monopotassium salt (rather than dipotassium one) of carbamoylcyanodithioacetic acid with ethyl 4-chloroacetoacetate. Substituted 5H-pyrano[2,3-d]-thieno[3,2-b]pyridines were synthesized based on these thieno[3,2-b]pyridines.
基于氨基甲酰氰基二硫代乙酸的单钾盐(而不是二钾盐)与 4-氯乙酰乙酸乙酯的多米诺反应,开发了一种新的高选择性合成取代的噻吩并[3,2-b]-吡啶的方法。基于这些噻吩并[3,2-b]吡啶合成了取代的5H-吡喃并[2,3-d]-噻吩并[3,2-b]吡啶。