Regio- and stereoselectivity of cycloaddition of C-amidonitrones to esters of methylenecyclopropanedicarboxylic acids
摘要:
C-Amidonitrones add regio- and stereoselectively to esters of 3-methylenecyclopropane-1,2-dicarboxylic, 2-(diphenylmethylene)cyclopropane-1,1-dicarboxylic, and 2-(1-phenylethylidene)cyclopropane-1,1-dicarboxylic acids to form a single diastereomer of 4-spirocyclopropaneisoxazolidines.
The first example of 1,3-dipolar cycloaddition reactions of nitrones to vinylidenecyclopropanes
作者:Anna G. Larina、Alexander V. Stepakov、Vitaly M. Boitsov、Alexander P. Molchanov、Vladislav V. Gurzhiy、Galina L. Starova、Anna N. Lykholay
DOI:10.1016/j.tetlet.2011.08.116
日期:2011.11
The firstexample of 1,3-dipolar cycloaddition reactions of nitrones to vinylidenecyclopropanes is described. The nitrones react with the C1′–C2′ double bond of vinylidenecyclopropanes to give the corresponding 4-cyclopropylidene-isoxazolidines in moderate yields.
Regio- and diastereoselectivity of the cycloaddition of aldonitrones with benzylidenecyclopropane: An experimental and theoretical study
作者:Ekaterina V. Sirotkina、Mariia M. Efremova、Alexander S. Novikov、Vladimir V. Zarubaev、Iana R. Orshanskaya、Galina L. Starova、Rafael R. Kostikov、Alexander P. Molchanov
DOI:10.1016/j.tet.2017.04.014
日期:2017.5
1,3-Dipolar cycloaddition of benzylidenecyclopropane with various aldonitrones proceeds regioselectively giving good yields of 4-spirocyclopropane isoxazolidines. In the case of aldonitrones, bearing carbamoyl- or aryl-groups on the carbon atom, only the cis-isomer is formed. The compounds synthesized were tested for their virus-inhibiting activity.
Isoxazolidine derivatives with a cyclopropyl residue
作者:N. A. Akmanova、Kh. F. Sagitdinova、E. S. Balenkova
DOI:10.1007/bf00513429
日期:1982.9
Akmanova, N. A.; Akbutina, F. A.; Talipov, R. F., Journal of general chemistry of the USSR, 1980, vol. 50, # 9, p. 1638 - 1640
作者:Akmanova, N. A.、Akbutina, F. A.、Talipov, R. F.、Sagitdinova, Kh. F.、Yur'ev, V. P.
DOI:——
日期:——
Regioselective cycloaddition of C-aryl- and C-carbamoylnitrones to methyl 2-benzylidenecyclopropanecarboxylate
作者:A. P. Molchanov、T. Q. Tran
DOI:10.1134/s1070428012100041
日期:2012.10
C-Aryl- and C-carbamoylnitrones reacted with methyl 2-benzylidenecyclopropanecarboxylate in highly regioselective fashion to give the corresponding 1,3-dipolar cycloaddition products, substituted methyl 5-oxa-6-azaspiro[2.4]heptane-1-carboxylates as mixtures of two diastereoisomers.