Synthesis and C-alkylation of hindered aldehyde enamines.

A new reactivity mode of hindered lithium amides with terminal epoxides is described whereby aldehyde enamines are produced via a previously unrecognized reaction pathway. Some of these aldehyde enamines display unprecedented C-alkylation reactivity toward unactivated primary and secondary alkyl hal...

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Main Authors: Hodgson, D, Bray, C, Kindon, N, Reynolds, N, Coote, S, Um, J, Houk, K
Format: Journal article
Language:English
Published: 2009
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author Hodgson, D
Bray, C
Kindon, N
Reynolds, N
Coote, S
Um, J
Houk, K
author_facet Hodgson, D
Bray, C
Kindon, N
Reynolds, N
Coote, S
Um, J
Houk, K
author_sort Hodgson, D
collection OXFORD
description A new reactivity mode of hindered lithium amides with terminal epoxides is described whereby aldehyde enamines are produced via a previously unrecognized reaction pathway. Some of these aldehyde enamines display unprecedented C-alkylation reactivity toward unactivated primary and secondary alkyl halides. For comparison, the reactivity of aldehyde enamines synthesized via a traditional condensation method was examined. C- rather than N-alkylation was the dominant reaction pathway found with a range of electrophiles, making this route to alpha-alkylated aldehydes more synthetically useful than previously reported.
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spelling oxford-uuid:5cb7f42d-4d0b-4b35-8ec8-85d7ad8e53a82022-03-26T17:30:01ZSynthesis and C-alkylation of hindered aldehyde enamines.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5cb7f42d-4d0b-4b35-8ec8-85d7ad8e53a8EnglishSymplectic Elements at Oxford2009Hodgson, DBray, CKindon, NReynolds, NCoote, SUm, JHouk, KA new reactivity mode of hindered lithium amides with terminal epoxides is described whereby aldehyde enamines are produced via a previously unrecognized reaction pathway. Some of these aldehyde enamines display unprecedented C-alkylation reactivity toward unactivated primary and secondary alkyl halides. For comparison, the reactivity of aldehyde enamines synthesized via a traditional condensation method was examined. C- rather than N-alkylation was the dominant reaction pathway found with a range of electrophiles, making this route to alpha-alkylated aldehydes more synthetically useful than previously reported.
spellingShingle Hodgson, D
Bray, C
Kindon, N
Reynolds, N
Coote, S
Um, J
Houk, K
Synthesis and C-alkylation of hindered aldehyde enamines.
title Synthesis and C-alkylation of hindered aldehyde enamines.
title_full Synthesis and C-alkylation of hindered aldehyde enamines.
title_fullStr Synthesis and C-alkylation of hindered aldehyde enamines.
title_full_unstemmed Synthesis and C-alkylation of hindered aldehyde enamines.
title_short Synthesis and C-alkylation of hindered aldehyde enamines.
title_sort synthesis and c alkylation of hindered aldehyde enamines
work_keys_str_mv AT hodgsond synthesisandcalkylationofhinderedaldehydeenamines
AT brayc synthesisandcalkylationofhinderedaldehydeenamines
AT kindonn synthesisandcalkylationofhinderedaldehydeenamines
AT reynoldsn synthesisandcalkylationofhinderedaldehydeenamines
AT cootes synthesisandcalkylationofhinderedaldehydeenamines
AT umj synthesisandcalkylationofhinderedaldehydeenamines
AT houkk synthesisandcalkylationofhinderedaldehydeenamines