1,3-Dipolar Cycloaddition Reactions of Transition-Metal Carbene Complexes and the Formal Pyridinannulation of the Cycloadducts

Article abstract of DOI:10.1021/ja00277a029

The first examples of 1,3-dipolar cycloadditions of α,β-unsaturated carbene complexes are described.The reaction of alkynylcarbene complexes with diazomethane gives a mixture of two products.The first arises from a <3+2> cycloaddition on the carbon-carbon