Addition of secondary amines to alkynephosphonates
AE Panarina, AV Dogadina, BI Ionin
Index: Panarina; Dogadina; Ionin Russian Journal of General Chemistry, 2003 , vol. 73, # 11 p. 1729 - 1737
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Citation Number: 4
Abstract
Abstract Addition of secondary amines to diethyl alkynephosphonates, catalyzed by Cu (I) salts, proceeds regio-and stereospecifically and yields diethyl (E)-2- diethylaminooalkenephosphonates. The E configuration was established by analysis of the vicinal coupling constants between the phosphorus and carbon nuclei in the 13 C NMR spectra of the reaction products and model compounds: 3 JPC is 6-10 Hz at the cis ...
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