18680-11-0Relevant articles and documents
Evidence for a free radical mechanism in the decomposition of bis(but-2-enyl)tellurium
Stevenson, John,Bell, William,Ferry, Joseph,Cole-Hamilton, David J.,Hails, Janet E.
, p. 141 - 145 (1993)
Reactions of basic aqueous solution of Na2Te with MeCH=CHCH2Br or CH2=CHCHMeCl give ZZ-, ZE- and EE(MeCH=CHCH2)2.This is interpreted in terms of a mechanism involving attack of Na2Te on the 2-butenyl cation formed from the allyl halide under the basic reaction conditions.The rate of reaction to give the E-configuration is ca. 3 times that to form the Z.Decomposition of (MeCH=CHCH2)2Te in the liquid or gas phases gives all possible products arising from dimerization of the allyl group.This is interpreted in terms of homolytic fission of the Te-C bond followed by coupling of the allyl radicals formed, particularly as no compounds containing CH2-CHCHMeTe are recovered after partial pyrolysis.The products can be fitted to a purely statistical model in which the reactivity ratio of the primary to secondary allyl is ca. 0.63:0.37.The statistical fit is taken to indicate that mechanism other than that involving homolytic fission and free radical coupling play a negligible part.
Convenient Stereoselective Synthesis of the Three Isomeric 2,6-Octadienes
Walba, David M.,Wand, Michael D.,Wilkes, Martin C.
, p. 2259 - 2261 (2007/10/02)
-
