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A convenient regio‐ and stereospecific synthesis of 2 H‐labelled methyl trans‐chrysanthemate
Author(s) -
Saljoughian Manoucher
Publication year - 1985
Publication title -
journal of labelled compounds and radiopharmaceuticals
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.432
H-Index - 47
eISSN - 1099-1344
pISSN - 0362-4803
DOI - 10.1002/jlcr.2580221013
Subject(s) - chemistry , stereospecificity , cyclopropane , ring (chemistry) , stereochemistry , regioselectivity , nuclear magnetic resonance spectroscopy , organic chemistry , catalysis
The methyl ester of trans‐chrysathemic acid (a constituent of natural pyrethrins) has been regio‐ and stereospecifically deuteriated in the olefinic (76%D) and the cyclopropane ring (67%D) protons in a one stage synthesis as shown by 1 H nmr spectroscopy.