+++Tetrahedron, 1988 и J. Chem. Soc., 1957

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Здравствуйте коллеги!
Подсобите плизз:

1. Syntheses of alkyl (E)-(1-aryl-2-pyrrolidinylidene)acetates
Joseph P. Michael, Gladys D. Hoskena and Arthur S. Howard
Tetrahedron, Volume 44, Issue 10, 1988, Pages 3025-3036

DOI:

http://dx.doi.org/10.1016/S0040-4020(88)90042-7

2. Seven-membered heterocyclic systems. Part I. The attempted Friedel–Crafts cyclisation of γ-arylsulphonamidobutyric acids
John T. Braunholtz and Frederick G. Mann
J. Chem. Soc., 1957, 4174-4182

DOI:

http://dx.doi.org/10.1039/JR9570004174

Заранее благодарен!

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