Synthesis and evaluation of 1,3-diethyl-2,2-dimethoxymethylcyclohexane, an external electron donor in Ziegler–Natta catalysis

Autor:	Philippe Coutrot, Jean Malinge, Thierry Saudemont, Claude Grison, Delphine Batt-Coutrot
Rok vydání:	2001
Předmět:	biology Substituent Electron donor General Chemistry Silyl enol ether Natta Alkylation biology.organism_classification Chemical synthesis Catalysis chemistry.chemical_compound chemistry Polymer chemistry Ziegler–Natta catalyst
Zdroj:	Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry. 4:893-898
ISSN:	1387-1609
DOI:	10.1016/s1387-1609(01)01342-1
Popis:	The first synthesis of 1,3-diethyl-2,2-dimethoxymethylcyclohexane starting from the easily available methyl 6-ethyl-2-oxocyclohexanecarboxylate via a process involving the building up of a fourfold carbon by a regiospecific alkylation of a silyl enol ether and the introduction of the ethyl substituent by a carbanionic approach is described. The behaviour of 1,3-diethyl-2,2-dimethoxymethylcyclohexane as external electron donor in high activity supported Ziegler–Natta catalyst is studied. The results presented show that this new donor allows the synthesis of polypropylene with a good isotacticity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6fdc98eae69af75fcde11da986ae0411 https://doi.org/10.1016/s1387-1609(01)01342-1 Zobrazit plný text záznamu