Regiospecific and stereoselective synthesis of (1E,3Z)-3-cyano-butadienylphosphonates

Journal of the Chemical Society - Perkin Transactions 1

Volumn , Issue 23, 1999, Pages 3495-3498

  Shen, Yanchang ^a   Jiang, Guo Fang ^a   Sun, Jie ^a  

^a SHANGHAI INSTITUTE OF ORGANIC CHEMISTRY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0002586716     PISSN: 0300922X     EISSN: None     Source Type: Journal    
DOI: 10.1039/a905941e     Document Type: Article

References (30)

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30. Both E and Z isomers can be used in this reaction, since the reaction is via carbanion 4 (see Scheme 2). The coupling constants of the vinyl Hs in all products 3 are within the range 18.0-17.2 Hz, showing that H-atoms across the C2-C3 double bond are trans (1E).