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Title: Rare-earth catalysts for carbon-carbon linkages of olefins: Cyclic oligomerization of ethylene

Abstract

A novel cyclo-oligomerization of ethene to alkylcyclopropanes, alkylcyclopentanes, and alkylcyclohexanes using a Ziegler-Natta type catalyst consisting of rare earth salts such as YCl{sub 3}, LaCl{sub 3}, CeCl{sub 3}, PrCl{sub 3} NdCl{sub 3}, SmCl{sub 3}, GdCl{sub 3}, HoCl{sub 3} ErCl{sub 3}, YbCl{sub 3}, LuCl{sub 3} combined with EtAlCl{sub 2} is described. The addition of carbon monoxide or isonitriles is essential. The C{sub 6}-oligomers consist of n-propylcyclopropane and methylcyclopentane. The C{sub 8}-oligomers include n-pentylcyclopropane, n-propylcyclopentane, 1,1-methylethylcyclopentane, and ethylcyclohexane. The C{sub 10}-oligomers embrace n-heptylcyclopropane, n-pentylcyclopentane, 1-1-methylbutylcyclopentane, 1,1-ethylpropylcyclopentane, and n-butylcyclohexane. When the reaction is carried out with rare earth salts and Et{sub 2}-AlCl or Et{sub 3}Al, only open-chain oligomers are obtained. There is no significant influence observed on product selectivity using other rare earth salts. Only the activity is affected. To understand the products formed a metallacycloalkane mechanism is proposed.

Authors:
; ;  [1];  [2];  [3]
  1. Technical Univ. Aachen (Germany)
  2. Fudan Univ., Shanghai (China)
  3. Zhejiang Univ., Hangzhou (China)
Publication Date:
OSTI Identifier:
7151627
Resource Type:
Journal Article
Journal Name:
Journal of Catalysis; (United States)
Additional Journal Information:
Journal Volume: 137:2; Journal ID: ISSN 0021-9517
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; CHLORIDES; CATALYTIC EFFECTS; ETHYLENE; POLYMERIZATION; RARE EARTH COMPOUNDS; ADDITIVES; ALUMINIUM CHLORIDES; CARBON MONOXIDE; CATALYSTS; CERIUM CHLORIDES; CHEMICAL REACTION KINETICS; CHEMICAL REACTION YIELD; CYCLOALKANES; CYCLOALKENES; ERBIUM CHLORIDES; GADOLINIUM CHLORIDES; HOLMIUM CHLORIDES; LANTHANUM CHLORIDES; LUTETIUM CHLORIDES; NEODYMIUM CHLORIDES; NITRILES; ORGANOMETALLIC COMPOUNDS; PRASEODYMIUM CHLORIDES; SAMARIUM CHLORIDES; SYNTHESIS; YTTERBIUM CHLORIDES; YTTRIUM CHLORIDES; ALKANES; ALKENES; ALUMINIUM COMPOUNDS; CARBON COMPOUNDS; CARBON OXIDES; CERIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; CHLORINE COMPOUNDS; ERBIUM COMPOUNDS; GADOLINIUM COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; HOLMIUM COMPOUNDS; HYDROCARBONS; KINETICS; LANTHANUM COMPOUNDS; LUTETIUM COMPOUNDS; NEODYMIUM COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PRASEODYMIUM COMPOUNDS; REACTION KINETICS; SAMARIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YIELDS; YTTERBIUM COMPOUNDS; YTTRIUM COMPOUNDS; 020400* - Petroleum- Processing

Citation Formats

Keim, W, Meltzow, W, Chen, Z, Huang, Z, and Shen, Z. Rare-earth catalysts for carbon-carbon linkages of olefins: Cyclic oligomerization of ethylene. United States: N. p., 1992. Web. doi:10.1016/0021-9517(92)90169-I.
Keim, W, Meltzow, W, Chen, Z, Huang, Z, & Shen, Z. Rare-earth catalysts for carbon-carbon linkages of olefins: Cyclic oligomerization of ethylene. United States. https://doi.org/10.1016/0021-9517(92)90169-I
Keim, W, Meltzow, W, Chen, Z, Huang, Z, and Shen, Z. 1992. "Rare-earth catalysts for carbon-carbon linkages of olefins: Cyclic oligomerization of ethylene". United States. https://doi.org/10.1016/0021-9517(92)90169-I.
@article{osti_7151627,
title = {Rare-earth catalysts for carbon-carbon linkages of olefins: Cyclic oligomerization of ethylene},
author = {Keim, W and Meltzow, W and Chen, Z and Huang, Z and Shen, Z},
abstractNote = {A novel cyclo-oligomerization of ethene to alkylcyclopropanes, alkylcyclopentanes, and alkylcyclohexanes using a Ziegler-Natta type catalyst consisting of rare earth salts such as YCl{sub 3}, LaCl{sub 3}, CeCl{sub 3}, PrCl{sub 3} NdCl{sub 3}, SmCl{sub 3}, GdCl{sub 3}, HoCl{sub 3} ErCl{sub 3}, YbCl{sub 3}, LuCl{sub 3} combined with EtAlCl{sub 2} is described. The addition of carbon monoxide or isonitriles is essential. The C{sub 6}-oligomers consist of n-propylcyclopropane and methylcyclopentane. The C{sub 8}-oligomers include n-pentylcyclopropane, n-propylcyclopentane, 1,1-methylethylcyclopentane, and ethylcyclohexane. The C{sub 10}-oligomers embrace n-heptylcyclopropane, n-pentylcyclopentane, 1-1-methylbutylcyclopentane, 1,1-ethylpropylcyclopentane, and n-butylcyclohexane. When the reaction is carried out with rare earth salts and Et{sub 2}-AlCl or Et{sub 3}Al, only open-chain oligomers are obtained. There is no significant influence observed on product selectivity using other rare earth salts. Only the activity is affected. To understand the products formed a metallacycloalkane mechanism is proposed.},
doi = {10.1016/0021-9517(92)90169-I},
url = {https://www.osti.gov/biblio/7151627}, journal = {Journal of Catalysis; (United States)},
issn = {0021-9517},
number = ,
volume = 137:2,
place = {United States},
year = {Thu Oct 01 00:00:00 EDT 1992},
month = {Thu Oct 01 00:00:00 EDT 1992}
}