Title:
【発明の名称】イソプロペニルフエノ-ルの製法
Document Type and Number:
Japanese Patent JPS5811930
Kind Code:
B2
Abstract:
A novel process for producing isopropenyl phenol such as p-isopropenyl phenol which comprises continuously feeding oligomers of isopropenyl phenol having a degree of polymerization of 2 to 5 into a high-boiling inert organic reaction medium such as an alkylnaphthalene heated at 150 DEG to 250 DEG C. under a pressure of 10 to 100 mmHg while maintaining the concentration of the oligomers in the reaction medium at not more than 30% by weight, thereby thermally decomposing the oligomers in the reaction medium; and continuously distilling off the resulting isopropenyl phenol out of the reaction system and recovering it. The process almost quantitatively gives isopropenyl phenol having reduced contents of impurities.
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Inventors:
KATO NOBUKATSU
TAKASE TSUTOMU
MORIMOTO YOSHIO
HATSUTORI MINORU
YUASA TERUO
TAKASE TSUTOMU
MORIMOTO YOSHIO
HATSUTORI MINORU
YUASA TERUO
Application Number:
JP9872178A
Publication Date:
March 05, 1983
Filing Date:
August 15, 1978
Export Citation:
Assignee:
MITSUI TOATSU CHEMICALS
International Classes:
C07C27/00; C07C37/52; C07C39/19; C07C67/00; (IPC1-7): C07C39/19; C07C37/52