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α-addition (alpha-addition)

A chemical reaction resulting in a single reaction product from two or three reacting chemical species, with formation of two new chemical bonds to the same atom in one of the reactant molecular entities. The synonymous term 1/1/addition is also used. For example:
A00001-1
(This particular example can also be viewed as an insertion reaction). In inorganic chemistry such α-addition reactions, generally to a metallic central atom, are known as 'oxidative additions'. α-Addition is the reverse of α-elimination or 1/1/elimination.
See also: addition, elimination
Source:
PAC, 1994, 66, 1077 (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1087
InChI=1/CHCl2/c2-1-3/h1H
ZJULYDCRWUEPTK-UHFFFAOYAI
InChI=1/CH4O/c1-2/h2H,1H3
OKKJLVBELUTLKV-UHFFFAOYAX
InChI=1/C2H4Cl2O/c1-5-2(3)4/h2H,1H3
GRTGGSXWHGKRSB-UHFFFAOYAJ
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Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook.
Last update: 2014-02-24; version: 2.3.3.
DOI of this term: doi:10.1351/goldbook.A00001.
Original PDF version: http://www.iupac.org/goldbook/A00001.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
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