When reacted with acetylacetone the trichloroacetyl and trifluoroacetyl isocyanates form the O-addition products, while benzoyl isocyanate forms a mixture of the O- and C-addition products. © 1982 Plenum Publishing Corporation.

The benzoyl and trichloroacetyl isocyanates react with dimedon to give the [4 + 2]-cycloadducts and the O- and C-addition products, whereas trifluoroacetyl isocyanate reacts to give the acid azomethine. © 1982 Plenum ...