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Revisiting the Aufbau Reaction with Acetylene: Growth at Aluminium Producing a Unique Oligomer Distribution
journal contribution
posted on 2023-05-17, 02:04 authored by Karpiniec, SS, McGuinness, DS, Patel, J, Noel DaviesNoel DaviesThe possibility of using aluminum alkyls for the growth of acetylene oligomerization was studied utilizing an addition reaction different from the Aufbau reaction of ethylene. The investigations included exposing toluene solutions of AlEt 3 to acetylene at a pressure of 1 bar gauge, which resulted in double insertion in Al-hexadienyl groups. AlMe 3 exposed to acetylene under the conditions of 100°C and 1 brag acetylene show a dominant oligomer distribution made up of propane, 1,3-pentadiene, C 9, C 13, and C 17 products. It is also found that oligomerization of AlEt 3 follows removal of the volatiles under vacuum and formation of C 10+ fractions as a yellow liquid. The distribution of oligomers can be explained by a model whereby the rate of addition across the double bond is significantly greater than that for insertion.
Funding
Australian Research Council
History
Publication title
Chemistry: A European JournalVolume
15Issue
5Pagination
1082-1085ISSN
0947-6539Department/School
School of Natural SciencesPublisher
Wiley-V C H Verlag GmbhPlace of publication
Po Box 10 11 61, Weinheim, Germany, D-69451Rights statement
Copyright 2009 Wiley-VCH Verlag GmbH&Co.Repository Status
- Restricted