Synthesis of polyphenylene derivatives by thermolysis of enediynes and dialkynylaromatic monomers
作者:Jens A John、James M Tour
DOI:10.1016/s0040-4020(97)00977-0
日期:1997.11
Described are the syntheses of substituted enediynes and dialkynylaromatics using Pd- or cross coupling procedures. The products were then thermalized to afford the corresponding poly(p-phenylene)s, poly(1,4-naphthalene)s, poly(benzo[c]thiophene)s, and poly(dibenzothiophene)s. Fifteen examples are provided that show the scope of the polymerization process based upon substituent patterns and cyclization
Synthesis of Polyphenylenes and Polynaphthalenes by Thermolysis of Enediynes and Dialkynylbenzenes
作者:Jens A. John、James M. Tour
DOI:10.1021/ja00090a066
日期:1994.6
Abstract : Described are the syntheses of substituted enediynes and dialkynylbenzenes using Pd- or Pd/Cu-catalyzed cross coupling procedures. The products were then thermalized, generally in benzene, to afford the corresponding poly(p-phenylene)s and poly(1,4-naphthalene)s. Thirteen examples are provided that show the scope of the polymerization process based upon substituent patterns and cyclization
Various 2-(6-substituted 3(Z)-hexen-1,5-diynyl)anilines 1a−g were treated with potassium tert-butoxide or potassium 3-ethylpentanoxide in NMP at 60 °C for 2 h to give the corresponding 5-substituted carbazoles 2a−g in 36−65% yields together with indoles 9a−g in 21−40% yields, respectively. Exposing the trifluoroacetamide analogues 10h−k under the same reaction conditions gave the carbazoles 2b−e in 37−57%