References and Notes
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- Cado , F. , Di-Martino , J. L. , Jacquault , P. , Bazureau , J. P. and Hamelin , J. 1995 . Tetrahedron Lett. , submitted. 2-(cyanomethylene) imidazolidine 2a is synthetized in one step by condensation of ethylene diamine with the appropriate imino-ether12 in CH2Cl2 at 41°C during 48h, in 62% yield. For another application of this imino-ether, see also :
- Jones , R. C.F. and Hirst , S. C. 1989 . Tetrahedron Lett. , 30 : 5361
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- Jolivet , S. , Di-Martino , J. L. , Jacquault , P. , Texier-Boullet and Hamelin , J. 1995 . Heteroatom. Chem. , in the press.
- Dugosz , A. 1991 . Wiadomosci Chem. , 45 : 707 – 16 . and references cited therein.
- Duschinsky , R. and Gabriel , T. F. Pat. USA . 3, 320, 256 . 1965 . Chem. Abstr. 1967 67 108666
- Sté Prolabo, 54 rue Roger Salengro, 94126 - Fontenay sous Bois (France).
- Initial attempts to separate the regioisomers 3b, 3b' by chromatography on silica or alumina gel were unsuccessful.
- Mc Elvain , S. M. and Schroeder , T. F. 1949 . J. Amer. Chem. Soc. , 71 : 40 – 46 .