Acryloyl halides, reaction with

Reactions of selenoureas with ketones, haloacyl halides and chloroacetonit-rile provides 1,3-selenazole derivatives,289 295 whereas reactions with acryloyl chloride gives 1,3-selenazine derivatives (Scheme 87).296... 

The first attempt to prepare poly(acryloyl chloride) from poly(acrylic acid) and thionyl chloride or phosphorus pentachloride was that by Staudinger [568]. Unfortunately, the polymer analogous reaction was not complete and he obtained only insoluble, probably highly cross-linked materials. Polymers are more conveniently prepared by free-radical polymerization of acryloyl [569 571] and methacryloyl chloride [572,573]. Linear polymers are obtained from the acyl halides if they are carefully purified and protected from moistme dming and after polymerization [574]. Free radical polymerization of acryloyl chloride was conducted in dichloroethane, ethylacetate, THF, dichloromethane, dioxane and cyclohexane. However, poly(acryloyl chloride) with high molecular weights could be obtained only in cyclohexane [575]. 

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