Detail of "18066-68-7"

CAS Number:
18066-68-7
Name:
Benzeneacetic acid,3,4-dimethoxy-, ethyl ester
Molecular Structure:
Formula:
C₁₂H₁₆O₄
Molecular Weight:
224.25
Synonyms:
Aceticacid, (3,4-dimethoxyphenyl)-, ethyl ester (6CI,7CI,8CI);3,4-Dimethoxyphenylacetic acid ethyl ester;Ethyl 3,4-dimethoxyphenylacetate;NSC 10152;
EINECS:
241-974-9
Density:
1.084 g/cm³
Boiling Point:
302 °C at 760 mmHg
Flash Point:
129.3 °C

Display：

3,4-Dimethoxyphenylacetic acid ethyl ester

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A novel synthetic route to 1-aryltetralin lignan lactone via intermolecular cycloaddition with o-quinodimethane: A novel synthetic route to 1-aryltetralin lignan lactone via intermolecular cycloaddition with o-quinodimethane. Das, K. G.; Afzal, Jalees; Hazra, B. G.; Bhawal, B. M. (Reg. Res. Lab., Hyderabad 500009, India). Synth. Commun., 13(9), 787-96 (English) 1983. CODEN: SYNCAV. ISSN: 0039-7911. DOCUMENT TYPE: Journal CA Section: 26 (Biomolecules and Their Synthetic Analogs) The lignan lactone I was prepd. Thus the lactone II was prepd. from 3,4-(MeO)2C6H3CH2CO2Et by Friedel-Crafts acylation and lactonization.There are some commonly used reagents with their cas registry numbers 18066-68-7 and 4521-61-3 in this article. Treatment of II with N-phenylmalimide gave III (RR1 = CO) which was hydrolyzed to III (R = CO2H, R1 = H) and esterified to give a mixt. of III (R = CO2Me, R1 = H) and its 2-epimer (IV). Redn. of IV to the alc., hydrolysis of amide group, and lactonization gave I. .