
Chemistry of Heterocyclic Compounds p. 673 - 675 (1982)
Update date:2022-09-26
Topics:
Prewysz-Kwinto, A.
A mixture of 3-formyl and 3-acetoxymethyl derivatives is formed in the oxidation of 2-carbethoxy-3-methyl-5-ethylbenzofuran with selenium dioxide.Reduction of the products with lithium aluminum hydride gives the corresponding 2,3-dihydroxymethyl derivatives, which are converted to 2,3-diformyl derivatives by succesive oxidation by the Fetizon method and with manganese dioxide.The corresponding benzofuro<2,3-d>pyridazines were synthesized by reaction of 2-carbethoxy-3-formyl-5-ethylbenzofuran with hydrazine hydrate.
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Doi:10.1016/0040-4039(92)89036-C
(1992)Doi:10.1021/acs.orglett.6b00782
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(2005)