Process for the preparation of symmetrical diarylacetylenes

Details Process for the preparation of symmetrical diarylacetylenes Process for the preparation of symmetrical diarylacetylenes

1990-10-02

1993-02-09

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549241, 549246, 558359, 560 64, 560 73, 562405, 562488, 564155, 568 34, 568316, 568636, 568646, 568660, 568729, 568932, 570128, 570143, 570184, 585534, C07C 200, C07D30777

Patent

active

051854546

ABSTRACT:
Symmetrical diaryl-acetylenes can be prepared by reacting an aryl halide with acetylene in the presence of a palladium catalyst and a base. If the acetylene is introduced into the liquid reaction mixture using a high intensity gas dispersion means, the aryl halide used can be an aryl bromide.

REFERENCES:
patent: 4223172 (1980-09-01), Sabourin et al.
patent: 4973707 (1990-11-01), Nye
Morrison & Boyd, Organic Chemistry3rd ed., 1974, p. 260.
Tetrahedron letters No. 50, pp. 4467-4470, 1975 Pergamon Press Printed in Great Britain.
Houben-Weyl, XIII 19b (1984) pp. 987-994.
Houben-Weyl, V/2a (19n) pp. 563-564.
Houben-Weyl, V/2a (1977) pp. 33-51, pp. 52-53.

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