Preparation of functionalized alkynes having internal triple bon

Details Preparation of functionalized alkynes having internal triple bon Preparation of functionalized alkynes having internal triple bon

1989-11-08

1992-03-03

Evans, J. E.

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

Organic compounds

Oxygen containing

568673, 568692, 564509, C07C 2958, C07C 33042, C07C 4314, C07C 8724

Patent

active

050935364

ABSTRACT:
Functional internal alkynes are conveniently and economically prepared by dehydrohalogenating a dibromide with an alkali metal hydroxide in the presence of a phase transfer catalyst.

REFERENCES:
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Dehmlow et al., "Tetrahydron", vol. 37 (1981) pp. 1653 to 1658.
Kimura et al., "J. Org. Chem.", vol. 47 (1982), pp. 2493 and 2494.
Gorguer et al., "Tetrahydron Letters", No. 51 (1976), pp. 4723 and 4724.
Just. Lieb. Ann. 1866, 140, pp. 39-75.
Just. Lieb. Ann. 1867, 143, pp. 22-41.
Just. Lieb. Ann. 1867, 143, pp. 41-57.
Just. Lieb. Ann. 1865, 135, pp. 226-229.
J. Org. Chem., 1982, 47, p. 2493.
Tetrahedron Letters No. 51, pp. 4723-4724, 1976.
Tetrahedron Letters No. 37, pp. 1653-1658, 1981.

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