Comparative study of the vicinal functionalization of olefins with 2:1 bromide/bromate and iodide/iodate reagents
作者:Manoj K. Agrawal、Subbarayappa Adimurthy、Bishwajit Ganguly、Pushpito K. Ghosh
DOI:10.1016/j.tet.2009.01.095
日期:2009.4
halohydrins, halo methyl ethers, and halo acetates from olefins using 2:1 Br−/BrO3− and I−/IO3− reagents. In many cases both reagents afforded products selectively in high yields. The highest halogen atom efficiencies attained were 97% and 93% for Br−/BrO3− and I−/IO3−, respectively. Of the two reagents, I−/IO3− was established to be the preferred reagent for vicinal functionalization of linear alkenes and
STEREOCHEMICAL STUDY ON THE REACTION OF COBALOXIME(I) WITH 2-SUBSTITUTED CYCLOHEXYL HALIDES. EVIDENCE FOR AN ELECTRON TRANSFER MECHANISM
作者:Masami Okabe、Masaru Tada
DOI:10.1246/cl.1980.831
日期:1980.7.5
Reaction of cobaloxime (I) , (CoI)−, with 2-hydroxy- (1a and 1b) and 2-alkoxycyclohexyl halides (1c–1h) gave 2-hydroxy- and 2-alkoxycyclohexyl cobaloximes (III) (2 and 3) . Stereochemistry of the organocobaloxime was independent of the configuration of the starting halides. 2-Allyloxycyclohexyl halides (6a and 6b) gave the organocobaloxime having 9-methyl-7-oxabicyclo[4,3,0]nonane moiety. These results
Correlation between inner-sphere stabilization and stereochemistry for the aliphatic nucleophilic substitution.
作者:Torben Lund
DOI:10.1016/s0040-4039(00)74281-x
日期:1991.3
The stereochemistry of the nucleophilic reaction of the enolate anion of 1,4-dihydro-4-methoxycarbonyl-1-methylpyridine (1−) with cis and trans-2-bromomethoxycyclohexane was investigated and correlated with the inner-sphere stabilization of the reactions calculated from the ratio kSUB/kET, where kSUB is the rate of substitution and kET the expected rate of electron transfer.
1,4-二氢-4-甲氧基羰基-1-甲基吡啶(的烯醇阴离子的亲核反应的立体化学1 - )与顺式和反式-2- bromomethoxycyclohexane进行了研究,并用计算出的反应的内球稳定化相关从比率k SUB / k ET,其中k SUB是取代率,k ET是预期的电子转移率。
KITCHING, W.;OLSZOWY, H. A.;HARVEY, K., J. ORG. CHEM., 1982, 47, N 10, 1893-1904
作者:KITCHING, W.、OLSZOWY, H. A.、HARVEY, K.
DOI:——
日期:——
Substituted benzamides. 1. Potential nondopaminergic antagonists of chemotherapy-induced nausea and emesis
作者:Ivo Monkovic、David Willner、Michael A. Adam、Myron Brown、R. R. Crenshaw、Carl E. Fuller、Peter F. Juby、George M. Luke、John A. Matiskella、Thomas A. Montzka
DOI:10.1021/jm00403a011
日期:1988.8
A series of new substitutedbenzamides has been synthesized and evaluated for dopamine antagonist activity and for antagonism of cisplatin-induced emesis in the dog and in the ferret. It was found that modification of the 2-methoxy substituent of metoclopramide was detrimental to dopaminergic D2 antagonism but not necessarily to antagonism of cisplatin-induced emesis. A number of analogues having a