EFFECT OF LEAVING GROUP ON RELATIVE REACTIVITY AND PRODUCTS IN SOLVOLYSIS

被引:34
作者
SMITH, SG
GOON, DJW
机构
[1] Department of Chemistry, Chemical Engineering, University of Illinois, Urbana
[2] Ph.D. Thesis, University of Illinois, Urbana, Ill
关键词
D O I
10.1021/jo01262a071
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Phenyldimethylcarbinyl chloride, p-nitrobenzoate, and thionbenzoate have been found to be more reactive than the corresponding benzhydryl compounds by factors of 5.5, 23, and 4700, respectively, in ethanolysis at 50°. For the cumyl derivatives, kinetic isotope effects and solvolysis products are consistent with an ionization-type reaction for the three leaving groups. The results are interpreted in terms of an observed kinetic isotope effect containing contributions from the isotope effect on elimination from the carbonium ion because of ion-pair return. The high reactivity of cumyl thionbenzoate is attributed to a decrease in the importance of ion-pair return in this system relative to the model compounds. © 1969, American Chemical Society. All rights reserved.
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页码:3127 / &
相关论文
共 38 条
[1]  
ANDERSON RF, UNPUBLISHED WORK
[2]   THE DECOMPOSITION OF SECONDARY ALKYL CHLOROSULFITES .3. THE ELIMINATION REACTION AND ISOTOPE EFFECTS [J].
BOOZER, CE ;
LEWIS, ES .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1954, 76 (03) :794-796
[3]   LEAVING GROUP EFFECTS IN SOLVOLYSIS REACTIONS [J].
BUCKSON, RL ;
SMITH, SG .
JOURNAL OF ORGANIC CHEMISTRY, 1967, 32 (03) :634-&
[4]  
CALDIN EF, 1965, J CHEM SOC, P3345
[5]   ION PAIRS IN ELIMINATION [J].
COCIVERA, M ;
WINSTEIN, S .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1963, 85 (11) :1702-&
[6]  
COHEN T, 1964, TETRAHEDRON LETT, P3721
[8]   STUDIES IN STEREOCHEMISTRY .34. VARIATION OF CARBONIUM ION STRUCTURE WITH VARIATION IN ORIGIN [J].
CRAM, DJ ;
SAHYUN, MRV .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1963, 85 (09) :1257-&
[9]   ELECTRONIC EFFECTS IN ELIMINATION REACTIONS .4. ELIMINATION OF BETA-PHENYLETHYL DERIVATIVES IN TERT-BUTYL ALCOHOL [J].
DEPUY, CH ;
BISHOP, CA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1960, 82 (10) :2532-2535
[10]   OXYGEN-18 SCRAMBLING IN SOLVOLYSES OF SIMPLE UNACTIVATED ALKYL ARENESULFONATES [J].
DIAZ, AF ;
LAZDINS, I ;
WINSTEIN, S .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1968, 90 (07) :1904-&