Solvent-free catalytic preparation of 1,1-diacetates from aldehydes using a Wells-Dawson acid (H6P2W18O62·24H 2O)

Aromatic and aliphatic aldehydes are transformed in 1,1-diacetates (acylals) in mild conditions, by a treatment with acetic anhydride and a Wells-Dawson acid (H6P2W18O62·24H 2O). gem-Diacetylation proceeds in Ac2O with a little as 1% mol Wells-Dawson acid at room temperature and under solventless co...

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Autores principales:	Romanelli, G.P., Thomas, H.J., Baronetti, G.T., Autino, J.C.
Formato:	JOUR
Materias:	1,1-diacetate Acylal Aldehyde Heteropolyacid Protecting group Wells-Dawson catalyst 2,3 butanedione 4 dimethylaminobenzaldehyde acetic anhydride acetoacetic acid derivative acid aldehyde aliphatic compound aromatic compound ketone derivative solvent unclassified drug Wells Dawson acid acetylation article catalysis gas liquid chromatography room temperature thin layer chromatography
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00404039_v44_n6_p1301_Romanelli
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00404039_v44_n6_p1301_Romanelli
record_format	dspace
spelling	todo:paper_00404039_v44_n6_p1301_Romanelli2023-10-03T14:50:54Z Solvent-free catalytic preparation of 1,1-diacetates from aldehydes using a Wells-Dawson acid (H6P2W18O62·24H 2O) Romanelli, G.P. Thomas, H.J. Baronetti, G.T. Autino, J.C. 1,1-diacetate Acylal Aldehyde Heteropolyacid Protecting group Wells-Dawson catalyst 2,3 butanedione 4 dimethylaminobenzaldehyde acetic anhydride acetoacetic acid derivative acid aldehyde aliphatic compound aromatic compound ketone derivative solvent unclassified drug Wells Dawson acid acetylation article catalysis gas liquid chromatography room temperature thin layer chromatography Aromatic and aliphatic aldehydes are transformed in 1,1-diacetates (acylals) in mild conditions, by a treatment with acetic anhydride and a Wells-Dawson acid (H6P2W18O62·24H 2O). gem-Diacetylation proceeds in Ac2O with a little as 1% mol Wells-Dawson acid at room temperature and under solventless conditions, obtaining very good to excellent yields (88-98%) of 1,1-diacetates (19 examples). Neither 4-dimethylaminobenzaldehyde nor ketones react under the same conditions. © 2003 Elsevier Science Ltd. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00404039_v44_n6_p1301_Romanelli
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	1,1-diacetate Acylal Aldehyde Heteropolyacid Protecting group Wells-Dawson catalyst 2,3 butanedione 4 dimethylaminobenzaldehyde acetic anhydride acetoacetic acid derivative acid aldehyde aliphatic compound aromatic compound ketone derivative solvent unclassified drug Wells Dawson acid acetylation article catalysis gas liquid chromatography room temperature thin layer chromatography
spellingShingle	1,1-diacetate Acylal Aldehyde Heteropolyacid Protecting group Wells-Dawson catalyst 2,3 butanedione 4 dimethylaminobenzaldehyde acetic anhydride acetoacetic acid derivative acid aldehyde aliphatic compound aromatic compound ketone derivative solvent unclassified drug Wells Dawson acid acetylation article catalysis gas liquid chromatography room temperature thin layer chromatography Romanelli, G.P. Thomas, H.J. Baronetti, G.T. Autino, J.C. Solvent-free catalytic preparation of 1,1-diacetates from aldehydes using a Wells-Dawson acid (H6P2W18O62·24H 2O)
topic_facet	1,1-diacetate Acylal Aldehyde Heteropolyacid Protecting group Wells-Dawson catalyst 2,3 butanedione 4 dimethylaminobenzaldehyde acetic anhydride acetoacetic acid derivative acid aldehyde aliphatic compound aromatic compound ketone derivative solvent unclassified drug Wells Dawson acid acetylation article catalysis gas liquid chromatography room temperature thin layer chromatography
description	Aromatic and aliphatic aldehydes are transformed in 1,1-diacetates (acylals) in mild conditions, by a treatment with acetic anhydride and a Wells-Dawson acid (H6P2W18O62·24H 2O). gem-Diacetylation proceeds in Ac2O with a little as 1% mol Wells-Dawson acid at room temperature and under solventless conditions, obtaining very good to excellent yields (88-98%) of 1,1-diacetates (19 examples). Neither 4-dimethylaminobenzaldehyde nor ketones react under the same conditions. © 2003 Elsevier Science Ltd. All rights reserved.
format	JOUR
author	Romanelli, G.P. Thomas, H.J. Baronetti, G.T. Autino, J.C.
author_facet	Romanelli, G.P. Thomas, H.J. Baronetti, G.T. Autino, J.C.
author_sort	Romanelli, G.P.
title	Solvent-free catalytic preparation of 1,1-diacetates from aldehydes using a Wells-Dawson acid (H6P2W18O62·24H 2O)
title_short	Solvent-free catalytic preparation of 1,1-diacetates from aldehydes using a Wells-Dawson acid (H6P2W18O62·24H 2O)
title_full	Solvent-free catalytic preparation of 1,1-diacetates from aldehydes using a Wells-Dawson acid (H6P2W18O62·24H 2O)
title_fullStr	Solvent-free catalytic preparation of 1,1-diacetates from aldehydes using a Wells-Dawson acid (H6P2W18O62·24H 2O)
title_full_unstemmed	Solvent-free catalytic preparation of 1,1-diacetates from aldehydes using a Wells-Dawson acid (H6P2W18O62·24H 2O)
title_sort	solvent-free catalytic preparation of 1,1-diacetates from aldehydes using a wells-dawson acid (h6p2w18o62·24h 2o)
url	http://hdl.handle.net/20.500.12110/paper_00404039_v44_n6_p1301_Romanelli
work_keys_str_mv	AT romanelligp solventfreecatalyticpreparationof11diacetatesfromaldehydesusingawellsdawsonacidh6p2w18o6224h2o AT thomashj solventfreecatalyticpreparationof11diacetatesfromaldehydesusingawellsdawsonacidh6p2w18o6224h2o AT baronettigt solventfreecatalyticpreparationof11diacetatesfromaldehydesusingawellsdawsonacidh6p2w18o6224h2o AT autinojc solventfreecatalyticpreparationof11diacetatesfromaldehydesusingawellsdawsonacidh6p2w18o6224h2o
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Solvent-free catalytic preparation of 1,1-diacetates from aldehydes using a Wells-Dawson acid (H6P2W18O62·24H 2O)

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