Phenylacetylene, oxidative coupling palladium catalyst

Phenylacetylene, oxidative coupling to diphenyldiacetylene, 45, 39 partial reduction to styrene using palladium catalyst, 46, 90 reaction with sodium hypobromite to yield phenylbromocthyne, 45, 86 Phenylacetyl fluoride, 46, 6... 

Ito and his coworkers have reported that palladium-catalyzed oxidative coupling reactions of Grignard reagents in the presence of V-substituted isocyanide dichloride afford diynes (equation 17). Isocyanide dichloride may serve as a reoxidant of the palladium catalyst in this sequence via a catalytic cycie. In addition Kiji and his coworkers have described the oxidative coupling of phenylacetylene by a Pd-Cu catalyst in the presence of 4-iodo-(3//) phenothiazin-3-one. ... 

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