Radical addition of polyhalomethanes to polychloroolefins in the presence of nucleophilic solvents
作者:
I.A.Shvarts,
M.Ya.Khorlina,
R.Kh.Freidlina,
期刊:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science
(Springer Available online 2004)
卷期:
Volume 19,
issue 9
页码: 1897-1901
ISSN:0568-5230
年代: 2004
DOI:10.1007/BF00849768
出版商: Springer_US-Boston
数据来源: Springer
摘要:
1.In the interaction of 5,5,5-trichloro-1-pentene and 4,4,4-trichloro-1-butene with polyhalomethanes in the presence of tert-butylperoxide in isopropanol or diethyl ether solution, together with the “normal” adducts with structure CCl3(CH2)nCHXCH2CCl3, where X=Br or Cl, compounds with the structure CCl3·(CH2)nCH2CH2CCl3are formed. The formation of the latter is explained by the fact that at the step of chain transfer, the intermediately formed electrophilic radicals with the structure CCl3(CH2)nĊHCH2CCl3enter into a competitive reaction with the nucleophilic solvent.2.The homolytic interaction of 3,3,3-trichloropropene with CCl4in the presence of solvents leads to the formation of compounds with the structure CHCl2CHClCH2CCl3and CCl2=CHCH2CCl3as a result of rearrangement of the intermediate radical CCl3CHCH2CCl3to the radical CCl2CHClCH2CCl3. The latter reacts partially with the solvent and is stabilized chiefly by the elimination of atomic chl
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