In the presence of catalytic amounts of cesium hydroxide (CsOH·H2O), alcohols, substituted anilines and heterocyclic amines undergo an addition in NMP to phenylacetylene leading to functionalized enol ethers and enamines. Anilines add to styrene (90–120°C, 12–14 h) leading to N-substituted anilines in satisfactory yields.
Ovchinnikov, V. V.; Cherezov, S. V.; Cherkasov, R. A., Journal of general chemistry of the USSR, 1984, vol. 54, p. 910 - 919
作者:Ovchinnikov, V. V.、Cherezov, S. V.、Cherkasov, R. A.、Pudovik, A. N.
DOI:——
日期:——
Functionalization of Alkynes Catalyzed byt-Bu-P4 Base
作者:Tatsushi Imahori、Chieko Hori、Yoshinori Kondo
DOI:10.1002/adsc.200404076
日期:2004.8
The addition of O- and N-nucleophiles to alkynescatalyzed by a phosphazene base, t-Bu-P4 base, was investigated. Alkynes were easily transformed to enol ethers and enamines in DMSO by the addition of nucleophiles. When phenylacetylene was reacted with diisopropylamine, a unique head-to-head dimerization of phenylacetylene was observed to give the enyne derivative. Terminal proton of phenylacetylene