Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Z. N. Saraeva"'
Autor:
Z. N. Saraeva, O. A. Ponomarev, Abdrakhmanov Ildus B, Tolstikov Genrikh A, N. G. Nigmatullin, B. G. Zykov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 40:552-556
Using the LCAO MO method in the MNDO approximation, we have compared the concerted [3, 3]-sigmatropic and stepwise mechanisms for the acid-catalyzed Claisen amino rearrangement. The latter is preferred.
Autor:
N. G. Nigmatullin, Tolstikov Genrikh A, Z. N. Saraeva, V. D. Komissarov, Abdrakhmanov Ildus B
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 38:2117-2122
A series of 4-R2-N-R1-N-(1-methyl-2-butenyl)- and 4-R2-N-R1-2-(1-methyl-2-butenyl)-anilines was synthesized. The rate constants of rearrangement and elimination of the hydrochlorides of the 4-R2-N-R1-N-(-1methyl-2-butenyl)anilines in nitrobenzene wer
Autor:
Abdrakhmanov Ildus B, V. M. Sharafutdinov, N. G. Nigmatullin, Akhat G. Mustafin, Tolstikov Genrikh A, Z. N. Saraeva
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 32:1149-1153
1. The acid-catalyzed Claisen rearrangement in a series of N-allylanilines in nitrobenzene is always accompanied by the elimination reaction, but its contribution to the total process is different, depending on the allyl substituent. On the basis of
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 35:353-355
1. Thermal Claisen rearrangement of N-allylanilines in undecane is accompanied by a parallel reaction involving elimination of the allyl fragment. The former reaction proceeds according to a [3,3]-sigmatropic mechanism with a varied structure of tran
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 38:1552-1554
1. The kinetics of the rearrangement and elimination of N-(1-methyl-2-butenyl)aniline was studied in undecane solution at 280‡C. 2. A catalytic effect was established for the glass surface and additives of water, alcohols, phenol, and carboxylic ac