Intermediates useful in the production of liquid crystal compoun

Details Intermediates useful in the production of liquid crystal compoun Intermediates useful in the production of liquid crystal compoun

1980-09-30

1982-12-28

Lone, Werren B.

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

Organic compounds

Oxygen containing

568743, 568745, 568744, C07C 3927

Patent

active

043663303

ABSTRACT:
An intermediate useful in the production of liquid crystal esters has a molecular structure ##STR1## in which of the groups R' and R" one is fluorine and the other is hydrogen, and in which R is an alkyl group having more than one carbon atom, an aryl substituted alkyl group or a cyclohexyl substituted alkyl group.
These compounds may be prepared from the corresponding alkoxy compounds ##STR2## where R'" is a protective alkyl group such as methyl. These compounds may be used in the production of liquid crystal esters by a conventional esterification with carboxylic acids, or acid derivative, eg chloride, eg containing the radical ##STR3## where X is an alkyl group and ##STR4## is a benzene or cyclohexane ring.

REFERENCES:
patent: 2086336 (1937-07-01), Raiziss et al.
patent: 3510528 (1970-05-01), Stevick
patent: 4122288 (1978-10-01), Christensen et al.
Suter et al., "J. Amer. Chem. Soc.", vol. 61, pp. 161-165, (1939).
Joshi et al., "J. Indian Chem. Soc.", vol. 37, pp. 687-689, (1960).
Joshi et al., "J. Indian Chem. Soc.", vol. 37, No. 11, pp. 685-686, (1960).
Joshi et al., "J. Indian Chem. Soc.", vol. 38, pp. 768-779, (1961).

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