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tr.v. al·kyl·at·ed, al·kyl·at·ing, al·kyl·ates
To add one or more alkyl groups to (a compound).

al′kyl·a′tion (-kə-lā′shən) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Chemistry) the attachment of an alkyl group to an organic compound, usually by the addition or substitution of a hydrogen atom or halide group
2. (Chemistry) the addition of an alkane hydrocarbon to an alkene in producing high-octane fuels
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌæl kəˈleɪ ʃən)

1. the replacement of a hydrogen atom in an organic compound by an alkyl.
2. the addition of an alkane to an alkene.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
"In addition, we successfully commissioned the new alkylation unit at the Houston refinery to improve our margin capture going forward."
The unit, which will replace an existing HF alkylation unit, will rely on the ISOALKYTM Technology developed by Chevron USA Inc.
The company has introduced a range of kits based on the new genome-wide, non-invasive, quantitative, fast, and reliable SLAMseq (thiol (SH)-Linked Alkylation for the Metabolic Sequencing of RNA) method, developed by Stefan Ameres' research group at IMBA.
The complex was to have an aromatics plant with a capacity of over 115,000 t/y of benzene, 20,000 t/y of toluene, plus a 100,000 t/y alkylation unit and a 30,000 t/y catalytic condensation unit.
We did not detect the transfer of an ethyl group from the TEBAC salt nor any long-chain alkylation in the case of tetradecyltrimethylammonium bromide.
Desulfurization on the basis of alkylation is very useful method for the removal of specific sulfur compounds called it thiophenes.In commercial scale this method is useful for light hydrocarbons.
They cover asymmetric C-H bond insertion reactions, symmetric cross-dehydrogenative coupling reactions, asymmetric oxidative biaryl coupling reactions, asymmetric [1,5]-hydride transfer reactions, asymmetric functionalization of C-H bonds via a transient carbon-metal species, asymmetric Friedel-Crafts alkylation reactions, N-heterocyclic carbene-catalyzed asymmetric functionalization of aldehyde C-H bonds, asymmetric hydroacylation reactions, and asymmetric hydrovinylation reactions.
The company specializes in a wide range of organic reaction technologies such as Amination, condensation, hydrogenation; Amidation, dehydrogenation & Mannich Reaction; Alkylation, diazotization & nitration; Bromination, esterifiction & oxidation; Catalytic hydrogenation, etherification & reduction; Chlorination & hydrogenation.
Dr Matthew Clingerman, EMEA regional engineering manager for DuPont Clean Technologies, provided delegates with up-to-date information on Stratco alkylation and IsoTherming hydroprocessing technologies and their role in producing clean fuels.
The most frequently used synthetic route for the preparation of N-protected alkyl- and arylhydrazines is reductive hydrazine alkylation (Scheme 1, left side).
It is also used for petroleum alkylation, steel pickling, glass etching and production of nitrogen trifluoride.
They discovered that combining the hydrogen-poor olefinic light gases that were a side product of catalytic cracking with isobutane in an alkylation reaction resulted in very high-octane (close to 100) gasoline blendstocks.