Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/69280
Title: Diastereoselective diazenyl formation: the key for manganese-catalysed alcohol conversion into (E)-alkenes
Authors: Azofra Mesa, Luis Miguel 
Poater, Albert
UNESCO Clasification: 3303 ingeniería y tecnología químicas
Keywords: Amines
Ligand
Approximation
Hydrogenation
Aldimines, et al
Issue Date: 2019
Journal: Dalton Transactions 
Abstract: The proposed reaction mechanism for the unprecedented direct transformation of primary alcohols into alkenes catalysed by Mn(i)-PNP complexes consists of two cycles. First, the acceptorless dehydrogenation of the alcohol into aldehyde is produced via a concerted mechanism. Secondly, in an excess of hydrazine, hydrazone is formed and reacts with the aldehyde to produce olefins. This process, taking place in base-free conditions, is characterised by the diastereoselective formation of diazenyl intermediates. Based on DFT data, the generation of the (S-N,S,S) diastereoisomer is favoured over the rest, leading in its decomposition to the preferential formation of an (E)-alkene and liberating N-2 and H2O as the only by-products.
URI: http://hdl.handle.net/10553/69280
ISSN: 1477-9226
DOI: 10.1039/c9dt03379c
Source: Dalton Transactions [ISSN 1477-9226], v. 48 (37), p. 14122-14127
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