Alkynol type compounds and alcohol-separating process

Details Alkynol type compounds and alcohol-separating process Alkynol type compounds and alcohol-separating process

1987-05-08

1988-09-06

Lone, Werren B.

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

Organic compounds

Oxygen containing

568809, 568854, 568868, 568913, C07C 2726, C07C 2974, C07C 3328

Patent

active

047695021

ABSTRACT:
Alkynol type compounds of the following formula (I): ##STR1## [wherein R.sub.1 -R.sub.5 and R.sub.6 -R.sub.10 each represent hydrogen atoms or lower alkyl group and R.sub.11 represents a lower alkyl group or a group of the formula: ##STR2## (wherein R.sub.1 -R.sub.5 and R.sub.6 -R.sub.10 are as hereinbefore defined); at least one of R.sub.1 -R.sub.5 and at least one of R.sub.6 -R.sub.10 being lower alkyl grops.] These compounds are capable of forming and precipitating crystalline complexes with alcohols when added to an aqueous solution of alcohol. Thus, these compounds are useful for separating alcohols from aqueous solutions of alcohols.

REFERENCES:
patent: 3082216 (1963-03-01), Dimroth et al.
patent: 4467102 (1984-08-01), Toda et al.
Yamada, "Tetrahedron Letters", No. 22(1981), pp. 3865-3872, Pergamon Press GB.
Toda, "Tetrahedron Letters", No. 33(1968), pp. 3695-3698), 3736-3737, Pergamon Press, GB.
Tanaka et al, "J. Chem. Soc., Chem. Comm.", (1983), pp. 593-594.
Koftry, "J. Org. Chem", vol. 50(1985), pp. 2154-2158.
"Gendai Kagaku, No. 155, pp. 24-31 (Feb. 1984).

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