Novel cyclization to benzofurans in the reaction of alkynyl(p-phenylene) bisiodonium ditriflates with phenoxide anion

DOI: 10.1016/S0040-4039(00)60614-7

Source and publish data:

Tetrahedron Letters p. 4055 - 4058 (1993)

Update date:2022-08-17

Topics:

Authors:

Kitamura, Tsugio

Zheng, Lei

Taniguchi, Hiroshi

Sakurai, Makoto

Tanaka, Ryuichi

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Article abstract of DOI:10.1016/S0040-4039(00)60614-7

Reaction of alkynyl(p-phenylene)bisiodonium ditriflates (2) with sodium phenoxide in methanol provides 2-substituted benzofurans (3). This result indicates that β-phenoxyalkylidenecarbenes generated by the reaction with phenoxide anion undergo novel intramolecular aromatic C-H insertion to afford benzofurans.

Full text of DOI:10.1016/S0040-4039(00)60614-7

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