GaCl3-Catalyzed Insertion of Diazene Derivatives into the Cyclopropane Ring1
…, A Hofmeister, J Magull, A de Meijere
Index: Korotkov, Vadim S.; Larionov, Oleg V.; Hofmeister, Anja; Magull, Joerg; De Meijere, Armin Journal of Organic Chemistry, 2007 , vol. 72, # 20 p. 7504 - 7510
Full Text: HTML
Citation Number: 65
Abstract
GaCl3 has been found to efficiently catalyze the formal cycloadditions of diazene derivatives 6 onto 2-arylcyclopropane-1, 1-dicarboxylates 5, giving rise to the pyrazolidine derivatives 7. The insertion into the cyclopropane ring proceeds with complete regioselectivity to furnish 5- arylpyrazolidine-1, 2, 3, 3-tetracarboxylates exclusively; however, the cis-configured azo compound N-phenyltriazolinedione gave the two possible regioisomeric pyrazolidine ...
Related Articles:
Asymmetric cyclopropanation of olefins with an in situ generated phenyliodonium ylide
[Mueller, Paul; Ghanem, Ashraf Synlett, 2003 , # 12 p. 1830 - 1833]
[Mueller, Paul; Allenbach, Yves; Robert, Estelle Tetrahedron Asymmetry, 2003 , vol. 14, # 7 p. 779 - 785]
Synthesis of E and Z 1-amino-2-aryl (alkyl)-cyclopropanecarboxylic acids via meldrum derivatives
[Izquierdo, M. L.; Arenal, I.; Bernabe, M.; Alvarez, E. Fernandez Tetrahedron, 1985 , vol. 41, # 1 p. 215 - 220]
Synthesis of E and Z 1-amino-2-aryl (alkyl)-cyclopropanecarboxylic acids via meldrum derivatives
[Izquierdo, M. L.; Arenal, I.; Bernabe, M.; Alvarez, E. Fernandez Tetrahedron, 1985 , vol. 41, # 1 p. 215 - 220]