Condensed Thiophenes and Selenophenes: Thionyl Chloride and Selenium Oxychloride as Sulfur and Selenium Transfer Reagents
作者:Ramiya R. Amaresh、M. V. Lakshmikantham、Jeffrey W. Baldwin、Michael. P. Cava、Robert M. Metzger、Robin D. Rogers
DOI:10.1021/jo010858m
日期:2002.4.1
give dicyano substituted thieno(3,4-c)thiophenes. The use of selenium oxychloride furnished the corresponding cyano substituted seleno(3,4-c)thiophene. 1,2-Phenylenediacetonitriles gave the corresponding cyano substituted benzo(c)thiophenes and benzo(c)selenenophenes, respectively, upon reaction with thionyl chloride and selenium oxychloride in the presence of base.
3,4-氰基甲基取代的噻吩在碱的存在下与亚硫酰氯反应生成二氰基取代的噻吩并(3,4-c)噻吩。氯氧化硒的使用提供了相应的氰基取代的硒代(3,4-c)噻吩。在碱的存在下,与亚硫酰氯和氯氧化硒反应后,1,2-苯二乙腈分别生成相应的氰基取代的苯并(c)噻吩和苯并(c)硒代苯酚。