Synthesis of [2,3-b]thieno- and furoquinoxalines by the SNH and SNipso reactions of 2-substituted quinoxalines with acetophenones
摘要:
The treatment of quinoxalin-2-one with acetophenones in the presence of boron trifluoride gives 3-(2-hydroxy-2-R-vinyl)quinoxalin-2-ones, which can be transformed into [2,3-b]thienoquinoxalines by reactions with P2S5.
Synthesis of [2,3-b]thieno- and furoquinoxalines by the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mrow><mml:msubsup><mml:mtext>S</mml:mtext><mml:mtext>N</mml:mtext><mml:mtext>H</mml:mtext></mml:msubsup></mml:mrow></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.gif" overflow="scroll"><mml:mrow><mml:msubsup><mml:mtext>S</mml:mtext><mml:mtext>N</mml:mtext><mml:mrow><mml:mi>i</mml:mi><mml:mi>p</mml:mi><mml:mi>s</mml:mi><mml:mi>o</mml:mi></mml:mrow></mml:msubsup></mml:mrow></mml:math> reactions of 2-substituted quinoxalines with acetophenones
作者:Anna Yu. Ponomareva、Dmitry G. Beresnev、Nadezhda A. Itsikson、Oleg N. Chupakhin、Gennady L. Rusinov
DOI:10.1070/mc2006v016n01abeh002208
日期:——
The treatment of quinoxalin-2-one with acetophenones in the presence of boron trifluoride gives 3-(2-hydroxy-2-R-vinyl)quinoxalin-2-ones, which can be transformed into [2,3-b]thienoquinoxalines by reactions with P2S5.