DAVIES J. W.; MALPASS J. R.; MOSS R. E., TETRAHEDRON LETT., 27,(1986) N 34, 4071-4074
作者:DAVIES J. W.、 MALPASS J. R.、 MOSS R. E.
DOI:——
日期:——
Electronic control of stereoselectivity in the chlorination of 1,4-dihydro-1,4-iminonaphthalenes (7-azabenzonorbornadienes) with N-chlorosuccinimide
作者:John W. Davies、Michael L. Durrant、Matthew P. Walker、John R. Malpass
DOI:10.1016/s0040-4020(01)80447-6
日期:1992.1
system is described. At low temperatures, the ratio of syn- and anti- N-chloroamines formed under conditions of kinetic control can be determined; this ratio is shown to be influenced substantially by variation in the electronic character of the aryl ring. At higher temperatures, inversion at nitrogen leads to different (thermodynamic) invertomerratios which also vary as a function of substitution
Heterolysis of N-chloro-1,2,3,4-tetrahydro-1,4-iminonaphthalenes and related systems; effects of structure and of solvent on reaction pathways
作者:John W. Davies、John R. Malpass、Richard E. Moss
DOI:10.1016/s0040-4039(00)84913-8
日期:1986.1
4-tetrahydro-1,4-iminonaphthalenes substantially modifies the Ag(I)-catalysed solvolytic behaviour of this system giving tetrahydrobenzazepine derivatives; small amounts of methanol in non-polar solvents have a profound effect favouring heterolytic, rather than homolytic, NCl cleavage. Methanoquinolines are produced secondary rearrangement. Bridgehead methyl substituents also divert the reactions of