Synthesis of Symmetrical and Unsymmetrical 1,4-Dithiins by Rhodium-Catalyzed Sulfur Addition Reaction to Alkynes
作者:Mieko Arisawa、Masahiko Yamaguchi、Takuya Ichikawa、Saori Tanii
DOI:10.1055/s-0035-1561452
日期:——
4-dithiins was developed using sulfur and alkynes. A rhodium complex catalyzes the addition reaction of sulfur with cyclic alkynes giving the corresponding symmetrical 1,4-dithiines under reflux conditions in 2-butanone. Unsymmetrical 1,4-dithiins are synthesized by the reaction of sulfur with dialkyl acetylenedicarboxylates in the presence of cyclic alkynes or vinyl ethers. A convenient synthetic method
摘要 使用硫和炔烃开发了一种简便的1,4-二硫辛合成方法。铑配合物在2-丁酮中在回流条件下催化硫与环状炔烃的加成反应,得到相应的对称1,4-二硫烷。不对称的1,4-二硫辛是在环炔烃或乙烯基醚存在下,通过硫与乙炔二羧酸二烷基酯的反应合成的。 使用硫和炔烃开发了一种简便的1,4-二硫辛合成方法。铑配合物在2-丁酮中在回流条件下催化硫与环状炔烃的加成反应,得到相应的对称1,4-二硫烷。不对称的1,4-二硫辛是在环炔烃或乙烯基醚存在下,通过硫与乙炔二羧酸二烷基酯的反应合成的。