2929-77-3Relevant academic research and scientific papers
A facile and efficient conversion of aldehydes into 1,1-diacetates (acylals) using iron(III) fluoride as a novel catalyst
Kamble,Tayade,Davane,Kadam
, p. 590 - 594 (2008/03/11)
Aldehydes are smoothly converted into the corresponding 1,1-diacetates (acylals) in high yields in the presence of a catalytic amount (0.1 mol-%) of iron(III) fluoride at room temperature. The noteworthy features of the present system are shorter reaction times, chemoselective protection of aldehydes, and solvent-free conditions. The procedure is especially useful for large-scale syntheses as the catalyst is highly effective from the view of activity, selectivity, reusability, and economy in the preparation of 1,1-diacetates (acylals). CSIRO 2007.
A remarkable HBF4-SiO2-catalyzed synthesis of acylals from aldehydes under solvent-free conditions
Kamble, Vinod T.,Bandgar, Babasaheb P.,Joshi, Neeta S.,Jamode, Vasant S.
, p. 2719 - 2722 (2008/02/11)
HBF4-SiO2 has been found to be an outstanding catalyst for the protection of carbonyl compounds as acylals under entirely solvent-free conditions. Some of the major advantages of this procedure are high yields, ease of operation, high chemoselectivity, high atom efficiency, and compatibility with other protecting groups. Georg Thieme Verlag Stuttgart.
An efficient method for the synthesis of acylals from aldehydes using silica-supported perchloric acid (HClO4-SiO2)
Kamble, Vinod T.,Jamode, Vasant S.,Joshi, Neeta S.,Biradar, Ankush V.,Deshmukh, Rameshchandra Y.
, p. 5573 - 5576 (2007/10/03)
The synthesis of acylals from structurally diverse aldehydes has been performed in excellent yields under solvent-free conditions using HClO4-SiO2 as a mild, convenient, reusable, and heterogeneous catalyst. The procedure is operationally simple, environmentally benign and has the advantage of enhanced atom utilization. Furthermore, the catalyst can be recovered simply and reused efficiently a number of times without appreciable loss of activity.
Bismuth compounds in organic synthesis. Bismuth nitrate catalyzed chemoselective synthesis of acylals from aromatic aldehydes
Aggen, David H.,Arnold, Joshua N.,Hayes, Patrick D.,Smoter, Nathaniel J.,Mohan, Ram S.
, p. 3675 - 3679 (2007/10/03)
Aromatic aldehydes are smoothly converted into the corresponding acylals in good yields in the presence of 3-10mol% Bi(NO3) 3·5H2O. Ketones are not affected under the reaction conditions. The relatively non-toxic nature of the catalyst, its ease of handling, easy availability and low cost make this procedure especially attractive for large-scale synthesis.
Depot preparations
-
, (2008/06/13)
The present invention relates to depot preparations for the targeted release of an aldehyde together with two carboxylic acids, where the released aldehydes are organoleptic substances, specifically fragrances or flavorings, and these depot preparations are prepared by reacting aldehydes with carboxylic anhydrides.
Conversion of aldehydes into geminal dicarboxylates (acylals) catalyzed by lithium tetrafluoroborate
Sumida,Nishioka,Sato
, p. 1921 - 1922 (2015/11/05)
A variety of aldehydes react with acid anhydrides in the presence of a catalytic amount of lithium tetrafluoroborate to afford the corresponding geminal dicarboxylates (acylals) in good to excellent yields.
