Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water

Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water

This paper presents a new green protocol for Knoevenagel condensations of aldehydes and compounds with an active methylene group in a binary mixture of ethanol/water (3:7, v/v). This medium favored the uncatalyzed Knoevenagel reactions and easy workup products can be obtained by precipitation in thi...

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Published in:Journal of the Brazilian Chemical Society Vol. 29; no. 7; pp. 1382 - 1387
Main Authors: Ferreira, João, de Resende Filho, João, Batista, Poliane, Teotonio, Ercules, Vale, Juliana
Format: Journal Article
Language:English
Published: Sociedade Brasileira de Química 01-07-2018
Subjects:
CHEMISTRY, MULTIDISCIPLINARY
binary mixture
active methylene compounds and aldehydes
green approach
Knoevenagel condensation
ethanol/water
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Abstract This paper presents a new green protocol for Knoevenagel condensations of aldehydes and compounds with an active methylene group in a binary mixture of ethanol/water (3:7, v/v). This medium favored the uncatalyzed Knoevenagel reactions and easy workup products can be obtained by precipitation in this medium and showed good isolated yields (55-100%) in short reaction times (1-60 min).
AbstractList This paper presents a new green protocol for Knoevenagel condensations of aldehydes and compounds with an active methylene group in a binary mixture of ethanol/water (3:7, v/v). This medium favored the uncatalyzed Knoevenagel reactions and easy workup products can be obtained by precipitation in this medium and showed good isolated yields (55-100%) in short reaction times (1-60 min).
Author Batista, Poliane
Teotonio, Ercules
Ferreira, João
Vale, Juliana
de Resende Filho, João
AuthorAffiliation Instituto Federal de Educação, Ciência e Tecnologia da Paraíba
Universidade Federal da Paraíba
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  givenname: Juliana
  surname: Vale
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CitedBy_id crossref_primary_10_1080_00397911_2022_2155836
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crossref_primary_10_1080_00397911_2019_1708947
crossref_primary_10_1007_s00044_023_03131_w
ContentType Journal Article
Copyright This work is licensed under a Creative Commons Attribution 4.0 International License.
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Keywords binary mixture
active methylene compounds and aldehydes
green approach
Knoevenagel condensation
ethanol/water
Language English
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Snippet This paper presents a new green protocol for Knoevenagel condensations of aldehydes and compounds with an active methylene group in a binary mixture of...
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SubjectTerms CHEMISTRY, MULTIDISCIPLINARY
Title Rapid and Efficient Uncatalyzed Knoevenagel Condensations from Binary Mixture of Ethanol and Water
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