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Molbank 2017, 2017(4), M966; doi:10.3390/M966

(±)-Methyl 1,1a,2,7b-Tetrahydro-2-oxocyclopropa[c] Chromene-1a-carboxylate

Department of Chemistry, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon 16227, Korea
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Received: 10 November 2017 / Revised: 16 November 2017 / Accepted: 16 November 2017 / Published: 18 November 2017
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Abstract

A novel method for the preparation of (±)-methyl 1,1a,2,7b-tetrahydro-2-oxocyclopropa[c]chromene-1a-carboxylate has been developed. The cyclopropanation of methyl coumarin-3-carboxylate provided title compound in moderate yield by dropwise treatment with 1.5 equiv. of dimethylsulfoxonium methylide over 6 h. The structure of the newly synthesized compound was determined using 1H-, 13C-NMR, IR and mass spectral data. View Full-Text
Keywords: cyclopropanation; coumarin; dimethylsulfoxonium methylide cyclopropanation; coumarin; dimethylsulfoxonium methylide
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MDPI and ACS Style

Choi, S.; Kim, S.-G. (±)-Methyl 1,1a,2,7b-Tetrahydro-2-oxocyclopropa[c] Chromene-1a-carboxylate. Molbank 2017, 2017, M966.

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