ChemInform Abstract: Polyphosphoric Acid Catalyzed Conversion of 3-(Methoxyphenyl)propionic Acids to Derivatives of (3.3)Metacyclophane-1,10-diones and 1- Indanones

Autor:	Juan Zhang, Thayne Vickstrom, Russell L. Hertzler, Elizabeth M. Holt, Edmund J. Eisenbraun
Rok vydání:	2010
Předmět:	Steam distillation Chemistry law Acid catalyzed Yield (chemistry) Organic chemistry General Medicine Catalysis law.invention
Zdroj:	ChemInform. 24
ISSN:	0931-7597
Popis:	Polyphosphoric acid (PPA) catalyzed cycliacylation of 3-(2-methoxy- and 2,4-dimethoxyphenyl)propionic acids (1a,b) results in dimeric products: 46 and 49% yields of 5,14-dimethoxy- and 5,7,14,16-tetramethoxy[3.3]metacyclophane-1,10-diones (5a,b) and a 2.5% yield of 4-methoxy-1-indanone (3a), isolated by steam distillation. 3-(4-Methoxyphenyl)propionic acid (1c), depending upon the ratio of PPA/1c, gives 17-65% yields of steam-distilled 6-methoxy-1-indanone (3c)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cb0e13a3ad35f03288f97cbbe17c28ac https://doi.org/10.1002/chin.199332145 Zobrazit plný text záznamu Plný text