146301-02-2Relevant academic research and scientific papers
Polyphosphoric Acid Catalyzed Conversion of 3-(Methoxyphenyl)propionic Acids to Derivatives of Metacyclophane-1,10-diones and 1-Indanones
Zhang, Juan,Hertzler, Russell L.,Holt, Elizabeth M.,Vickstrom, Thayne,Eisenbraun, Edmund J.
, p. 556 - 559 (1993)
Polyphosphoric acid (PPA) catalyzed cycliacylation of 3-(2-methoxy- and 2,4-dimethoxyphenyl)propionic acids (1a,b) results in dimeric products: 46 and 49percent yields of 5,14-dimethoxy- and 5,7,14,16-tetramethoxymetacyclophane-1,10-diones (5a,b) and
