Method for preparing sulfones

Details Method for preparing sulfones Method for preparing sulfones

1992-06-10

1993-09-28

Cintins, Marianne M.

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

Organic compounds

Sulfur containing

568 30, 558 48, 558 56, 558 51, C07C31504

Patent

active

052488284

ABSTRACT:
A method for preparing a sulfone represented by the following formula: ##STR1## wherein R' represents a lower alkyl group, an aryl group or an aryl group whose nucleus has at least one substituent selected from the group consisting of a halogen atom, nitro group, a lower alkyl group, phenyl group and a phenyl group substituted with a halogen atom, or an alkali metal salt thereof. A sulfonic acid ester of 4-hydroxybiphenyl is condensed at a temperature of 0.degree. to 200.degree. C. in a presence of a Lewis acid or a super-strong acid with a sulfonyl chloride represented by the formula R'SO.sub.2 Cl, wherein R' is the same as that defined above.

REFERENCES:
Mar., Advanced Organic Chemistry, 3rd Edition, p. 444, 1985.
Poly(arylene ether sulphones) by polyetherification: 1. Synthesis of halogenophenols* by T. E. Attword, et al., Polymer, 1977, vol. 18, Apr.

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