Sherman & Shalloway
Process for preparing isopropenyl phenol
 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.degree. to 250.degree. 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. 
Mitsui Toatsu Chemicals, Incorporated
C
C07C
inventional
Yoshio Teruo Tsutomu Nobukatu Minoru
Morimoto Yuasa Takase Kato Hattori