Synthesis of 2,3,4,6,7,8-Hexahydro-5H-1-benzopyran-5-ones and 3-(6-Oxo-1-cyclohexenyl)alkanoic Acids by Reduction of 4,6,7,8-Tetrahydro-2H-1-benzopyran-2,5(3H)-diones

DOI: 10.1002/hlca.19860690723

Source and publish data:

Helvetica Chimica Acta p. 1681 - 1684 (1986)

Update date:2022-07-29

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Authors:

Hombrecher, Hermann

Margaretha, Paul

Tissot, Paul

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Article abstract of DOI:10.1002/hlca.19860690723

Comparative results on the reduction of 4,6,7,8-tetrahydro-7,7-dimethyl-2H-1-benzopyran-2,5(3H)-diones 1 are reported.Hydride reduction (LiAlH4 in Et2O or NaBH4 in i-PrOH) affords 2,3,4,6,7,8-hexahydro-5H-1-benzopyran-5-ones 5 in 30-60 percent isolated yi

Full text of DOI:10.1002/hlca.19860690723

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