Process for the purification of cyclobutenoarenes

Details Process for the purification of cyclobutenoarenes Process for the purification of cyclobutenoarenes

1988-08-31

1990-06-19

Caldarola, Glenn

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By ring formation from nonring moiety, e.g., aromatization,...

585866, C07C 1306, C07C 717

Patent

active

049355716

ABSTRACT:
A process for the recovery of a cyclobutenoarene such as benzocyclobutene from a mixed reaction product is disclosed. The mixed reaction product is contacted with an aqueous acid solution so as to convert impurities to species such as oligomers and water addition products which have sufficiently reduced volatility that they can be separated from cyclobutenoarene by distillation. The cyclobutenoarene is then recovered from the organic phase.

REFERENCES:
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patent: 4540763 (1985-09-01), Kirchoff
patent: 4544782 (1985-10-01), Chapman et al.
patent: 4851603 (1989-07-01), Quarderer et al.
Chapman et al., J. Am. Chem. Soc., 1987, 109, 553-559.
Rabjohn, J. Am. Chem. Soc., 1954, 76, 5579-5481.

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