6842-31-5Relevant academic research and scientific papers
A facile and efficient protocol for esterification and acetalization in a PEG1000-D(A)IL/toluene thermoregulated catalyst-media combined systems
Wang, Yinglei,Zhi, Huizhen,Luo, Jun
, p. 46 - 52 (2013/09/23)
A novel efficient and recyclable temperature-dependent biphasic catalyst and reaction media combined system comprised of PEG-1000 linked dicationic acidic ionic liquid and toluene was developed and applied in esterification of aromatic acids and acetalization of aromatic aldehydes with good to excellent yields. This system is characteristic of temperature-dependent reversible biphasic property, simple and facile recyclability, high catalytic activity and extensive substrate and reaction adaptability.
Bronsted acidic ionic liquids as efficient and recyclable catalysts for protection of carbonyls to acetals and ketals under mild conditions
Du, Yuying,Tian, Fuli
, p. 2703 - 2708 (2007/10/03)
A series of acidic ionic liquids have been used as efficient catalysts for the protection of various carbonyl compounds at room temperature. The features of mild conditions, satisfactory isolated yield, simple workup, and the recyclability of the catalyst were present in this process. Copyright Taylor & Francis, Inc.
Sulfamic acid as a cost-effective and recyclable catalyst for protection of carbonyls to acetals and ketals under mild conditions
Gong, Weizhong,Wang, Bo,Gu, Yanglong,Yan, Liang,Yang, Liming,Suo, Jishuan
, p. 4243 - 4247 (2007/10/03)
An efficient H2NSO3H-catalyzed protection of various carbonyl compounds at room temperature was investigated. The features of mild conditions, cost-efficient catalyst, simple workup, and the recyclability of the catalyst were represented in this process.
BETA-BLOCKING SUBSTITUTED IMIDAZOLES
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, (2008/06/13)
Novel substituted imidazoles and methods for their preparation are disclosed. These imidazoles, and their salts, exhibit pharmacological activity which includes antihypertensive activity and β-adrenergic blocking activity.
BETA-ADRENERGIC BLOCKING IMIDAZOLYLPHENOXY PROPANOLAMINES
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, (2008/06/13)
Substituted imidazoles and methods for their preparation are disclosed. These imidazoles, and their salts, exhibit pharmacological activity which includes antihypertensive activity and β-adrenergic blocking activity. STR1
Acetal Formation Facilitated in 2-Hydroxyaryl Aldehydes by Intramoleculedar Acyl Group Transfer
Liepa, Andris J.,Morton, Trevor C.
, p. 1747 - 1757 (2007/10/02)
Convenient preparations of synthetically useful acetals, a dithioacetal and an oxathiolan from the 2-acyl derivatives of 2-hydroxyaryl aldehydes under basic conditions are described.The mildness of the reaction conditions is illustrated by the formation of an ethoxycarbonyl-substituted dioxolan.The reaction is dependent upon an intramolecular acetyl group transfer and the mechanism of the reaction is discussed.Some broader implications of this type of acyl transfer are discussed.
3-AMINO-2-HYDROXYPROPOXYARYL IMIDAZOLE DERIVATIVES
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, (2008/06/13)
Novel substituted imidazoles of the formula STR1 and methods for their preparation are disclosed. These imidazoles, and their salts, exhibit pharmacological activity which includes antihypertensive activity and β-adrenergic blocking activity.
3-AMINO-2-OR-PROPOXYARYL SUBSTITUTED IMIDAZOLES
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, (2008/06/13)
Novel 3-amino-2-OR-propoxyaryl substituted imidazoles and methods for their preparation are disclosed. These imidazoles, and their salts, exhibit pharmacological activity which includes antihypertensive activity and β-adrenergic blocking activity.
Phenyl carbamates
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, (2008/06/13)
O-Phenylcarbamates, e.g. those of the formula EQU1 are biocides, e.g. insecticides.
