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Selective Homologation Routes to 2,2,3‐Trimethylbutane on Solid Acids
Author(s) -
Ahn John H.,
Temel Burcin,
Iglesia Enrique
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200900541
Subject(s) - isomerization , chemistry , methylation , ether , ion , carbenium ion , cracking , dimethyl ether , organic chemistry , medicinal chemistry , catalysis , biochemistry , gene
Sailing the seven ‘C's : 2,2,3‐Trimethylbutane (triptane) selectively forms from dimethyl ether at low temperatures on acid zeolites. Selective methylation at less‐substituted carbons, relative rates of methylation to hydrogen transfer as a function of chain size, slow skeletal isomerization, and β‐scission cracking of triptyl chains and their precursors are intrinsic properties of carbenium ions and account for the remarkable triptane selectivities within C 7 .