Intramolecular steric factors in the thermolysis of 4-alkylidene-1-pyrazolines

GN LeFevre, RJ Crawford

Index: LeFevre, Gerard N.; Crawford, Robert J. Journal of the American Chemical Society, 1986 , vol. 108, # 5 p. 1019 - 1027

Full Text: HTML

Citation Number: 23

Abstract

Abstract: Secondary deuterium kinetic isotope effects and product proportions are measured for several methyl-substituted 4-methylene-1-pyrazolines and deuterated isotopomers. The kinetic data support a single-bond-cleavage mechanism, and the products indicate that three modes of ring closure are required. Evidence is presented for a series of monomethyl compounds to suggest that the mechanism is more complex than a two-step scheme ...

Related Articles:

Synthesis and 1H and 13C nuclear magnetic resonance spectra of some 4-alkylidene-1-pyrazolines and alkylidenecyclopropanes

[Meijs, Gordon F.; Eichinger, Peter C. H. Tetrahedron Letters, 1987 , vol. 28, # 45 p. 5559 - 5560]

Desaminierungsreaktionen, 44. Zerfall von 1??Alkylcyclopropandiazonium??Ionen

[Kirmse, Wolfgang; Rode, Jutta; Rode, Klaus Chemische Berichte, 1986 , vol. 119, # 12 p. 3672 - 3693]

The effect of the diethylphosphonate group on free radical stabilities

[Creary, Xavier; Benage, Brigitte; Mehrsheikh-Mohammadi, M. E.; Bays, J. Philip Tetrahedron Letters, 1985 , vol. 26, # 20 p. 2383 - 2386]

Desaminierungsreaktionen, 44. Zerfall von 1??Alkylcyclopropandiazonium??Ionen

[Kirmse, Wolfgang; Rode, Jutta; Rode, Klaus Chemische Berichte, 1986 , vol. 119, # 12 p. 3672 - 3693]

Desaminierungsreaktionen, 44. Zerfall von 1??Alkylcyclopropandiazonium??Ionen

[Kirmse, Wolfgang; Rode, Jutta; Rode, Klaus Chemische Berichte, 1986 , vol. 119, # 12 p. 3672 - 3693]

More Articles...