Preparation of 3-alkyltetrahydrofurans

Details Preparation of 3-alkyltetrahydrofurans Preparation of 3-alkyltetrahydrofurans

1998-09-29

1999-11-23

Dentz, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

5462834, 548517, 549414, 549472, C07D40506, C07D40706

Patent

active

059903139

ABSTRACT:
Disclosed is a process for the preparation of 3-alkyltetrahydrofurans by a two-step process wherein 2,3-dihydrofuran is reacted with an acetal to form an intermediate compound which may be converted to a 3-alkyltetrahydrofuran by contacting the intermediate with hydrogen in the presence of a catalytic amount of a Group VIII noble metal or rhenium, water and a strong acid.

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Zenk et al., Synthesis, 695 (1984).
Botteghi et al., J. Org. Chem., 37, 1835 (1972).
Talipov et al., Zh. Org. Khim., 29, 1024 (1993).
Shriner et al., Org. Synth. Coll., vol. IV, 786 (1963).
Comprehensive Organic Synthesis, B. M. Trost, Ed., Pergamon Press, New York, vol. 2, 612 (1991).
Starr et al., Org. Synth. Coll., vol. II, 566 (1943).
Chemical Abstracts, vol. 120, No. 17, Apr. 25, 1994, Talipov et al.

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