A Novel Consecutive Three-Component
Coupling-Addition-S<sub>N</sub>Ar (CASNAR) Synthesis
of 4<i>H</i>-Thiochromen-4-ones
作者:Thomas Müller、Benjamin Willy
DOI:10.1055/s-0029-1216735
日期:——
4H-Thiochromen-4-ones and 4H-thiopyrano[2,3-b]pyridin-4-ones are readily synthesized in good yields by a consecutive one-pot, three-component coupling-addition-S N Ar (CASNAR) sequence starting from aroyl chlorides, alkynes, and sodium sulfide nonahydrate.
以酰氯、炔烃和硫化钠为起点,通过连续的一锅三组份偶联-加成-S N Ar (CASNAR) 顺序,4H-硫代色原-4-酮和 4H-硫代吡喃并[2,3-b]吡啶-4-酮很容易合成,而且产率很高。
Microwave-assisted three-component coupling-addition-S<sub>N</sub>Ar (CASNAR) sequences to annelated 4H-thiopyran-4-ones
作者:Benjamin Willy、Walter Frank、Thomas J. J. Müller
DOI:10.1039/b917627f
日期:——
A whole family of annelated 4H-thiopyran-4-ones as the core structural unit was readily synthesized in good yields by a microwave-assisted coupling-addition-SNAr (CASNAR) sequence starting from readily available (het)aroyl chlorides, alkynes and sodium sulfide nonahydrate in a consecutive one-pot three-component reaction. All representatives display a pronounced halochromicity of the absorption bands
微波辅助偶合-S N Ar(CASNAR)序列从容易获得的(杂)芳酰氯开始,以高收率容易地合成了全系列的4 H-硫代吡喃-4-酮作为核心结构单元。炔烃和九水合硫化钠在连续的一锅三组分反应中。所有代表在质子化时均显示出吸收带的明显的光致变色性。根据DFT计算,退火的4 H-硫吡喃-4-酮的电子基态具有相当大的两性离子特征。
COUTURE, AXEL;GRANDCLAUDON, PIERRE;HUGUERRE, ERIC, SYNTHESIS (BRD),(1989) N, C. 456-457
作者:COUTURE, AXEL、GRANDCLAUDON, PIERRE、HUGUERRE, ERIC