Highly efficient synthesis of 3-amino-/alkylthio-cyclobut-2-en-1-ones based on the cyclization of acyl ketene dithioacetals
作者:Yu-Long Zhao、Shao-Chun Yang、Chong-Hui Di、Xiao-Dan Han、Qun Liu
DOI:10.1039/c0cc02470h
日期:——
A new strategy for the highlyefficient one-pot synthesis of 3-amino-/alkylthio-cyclobut-2-en-1-ones based on the cyclization of acyl ketene dithioacetals is disclosed. In addition, the rearrangement of 3-amino-cyclobut-2-en-1-ones to 4-quinolone derivatives is described.