Chloronium Cations in Dichloromethane Solutions as Catalysts for the Conversion of CH2Cl2 to CHCl3/CCl4 and CH3Cl/CH4

Chloronium Cations in Dichloromethane Solutions as Catalysts for the Conversion of CH2Cl2 to CHCl3/CCl4 and CH3Cl/CH4 Full article

Journal

ChemistrySelect
ISSN: 2365-6549

Output data

Year: 2018, Volume: 3, Number: 1, Pages: 122-126 Pages count : 5 DOI: 10.1002/slct.201702738

Tags

chloronium cations; chlorination; dechlorination; homogeneous catalysis; superacids

Authors

Stoyanov Evgenii S. ^1,2 , Stoyanova Irina V. ¹

Affiliations

1	(Данные Web of science) Russian Acad Sci, Siberian Branch, Vorozhtsov Inst Organ Chem, Novosibirsk 630090, Russia
2	(Данные Web of science) Novosibirsk State Univ, Natl Res Univ, Dept Nat Sci, Novosibirsk 630090, Russia

The mechanism of homogeneous acidic catalytic conversion of CH2Cl2 to CHCl3 and CCl4 and simultaneously to CH3Cl and CH4 in solutions of the H(CHB11Cl11) superacid in dichloromethane was identified. The role of the catalysts is played by the chloronium cations formed in the solutions. The processes proceed through the exchange of the Cl atoms of the CH2Cl- group of cations CH2Cl-Cl+-CH2Cl and CH2Cl-Cl+-CH3 for the H atoms of the CH2Cl2 molecules, transforming them initially to CHCl3 and then to CCl4. Simultaneously, the CH3-group of cations CH3-Cl+-CH2Cl and CH3-Cl+-CH3 exchanges its H atom for the Cl atom of CH2Cl2 molecules, transforming them to CH3Cl and further to CH4. The processes of chlorination and dechlorination lead to cyclic reproduction of chloronium cations.

Stoyanov E.S. , Stoyanova I.V.
Chloronium Cations in Dichloromethane Solutions as Catalysts for the Conversion of CH2Cl2 to CHCl3/CCl4 and CH3Cl/CH4
ChemistrySelect. 2018. V.3. N1. P.122-126. DOI: 10.1002/slct.201702738 WOS Scopus РИНЦ

Published online:	Jan 3, 2018
Published print:	Jan 10, 2018

Web of science	WOS:000419480300019
Scopus	2-s2.0-85045636021
Elibrary	35544217
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