CYCLOADDITION REACTION OF 3-CYANOINDOLIZINES WITH DIMETHYL ACETYLENEDICARBOXYLATE - FORMATION OF CYCLAZINES AND 1:2 ADDUCTS

DOI: 10.1246/cl.1980.149

Source and publish data:

Chemistry Letters p. 149 - 150 (1980)

Update date:2022-08-02

Topics:

Authors:

Uchida, Takane

Matsumoto, Kiyoshi

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Article abstract of DOI:10.1246/cl.1980.149

3-Cyano- and 3-cyano-6,8-dimethylindolizines (1a) and (1b) react with dimethyl acetylenedicarboxylate in refluxing toluene in the presence of Pd-C to give the cycl<3.2.2>azines (4a) and (4b), respectively, while 3-cyano-7-methyl- and 3-cyano-7-benzylindolizines (1c) and (1d) affording the 1:2 adducts (6c) and (6d) along with cycl<3.2.2>azine (4d).

Full text of DOI:10.1246/cl.1980.149

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