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
C-Glycosidation is of significance for introducing carbon chains to sugar nuclei from the chiral pool. Silylacetylenes have been shown to be sufficiently reactive for the selective introduction of acetylenic groups, usefull for organic synthesis.
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
Nanochannel Array within a Multilayered Network of a Planarized Dehydro[24]annulene
作者:Mitsuharu Suzuki、Angelo Comito、Saeed I. Khan、Yves Rubin
DOI:10.1021/ol1006967
日期:2010.5.21
Dehydro[24]annulene 1c adopts an unusual planarized conformation in the crystal. A multilayered stack of hydrogen-bonded grids delineates tightly packed nanotubular channels. The related macrocycles 1a and 1b, on the other hand, have the expected puckered conformations in the crystal.