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Communication | Regular issue | Vol 2, No. 1, 1974, pp.27-32
Published online, 1st January, 1970
DOI: 10.3987/R-1974-01-0027
Studies of Polyazapentalenes. V. The Cycloaddition Reaction of 8-Methyldibenzo[b,e]-1,3a,6a-triazapentalene with Asymmetrical Acetilenes

Otohiko Tsuge* and Hideo Samura

*Research Institute of Industrial Science, Faculty of Engineering, Kyushu University, 6-1, Kasuga-koen, Kasuga 816-8580, Japan


Triazapentalene (I) reacted with asymmetrical acetylenes (II) to give the corresponding [3+2] cycloadducts as major products. It has been found that phenyl- and p-chlorophenylacetylene added to I in different directions, and that methyl phenylpropiolate gave two [3+2] cycloadducts.