Sm/TiCl 4ReductionAzo compounds were conveniently reduced by a system consisting of Sm/TiCl4 to produce aniline anions. This anion species reacted smoothly with aliphatic acyl chlorides or acid anhydrides to afford corresponding amides under mild and neutral conditions.doi:10.1002/jccs.200500175Xue Li...
(wherein M is a cation)) comprising the step of reacting a substituted phenol corresponding to L with either (1) a carboxylic acid corresponding to RCO- in the presence of a chlorinating agent or (2) an acyl chloride corresponding to RCO- in the presence of a tertiary amine or tertiary...
ChemInform Abstract: A New Synthesis of β㎏eto Amides via Reaction of Ketone Lithium Enolates with Isocyanates. Herein we present an efficient method for the synthesis of esters from aromatic aldehydes via readily accessible acyl hydrazides. The developed reaction pr... SB Hendi,MS Hendi,JF Wolfe...
Bleach activators are, for example, compounds from the classes of substance below: polyacylated sugars or sugar derivatives having C1-10-acyl radicals, preferably acetyl, propionyl, octanoyl, nonanoyl or benzoyl radicals, particularly preferably acetyl radicals, can be used as bleach activators. As ...
The organic anhydrides can be used to introduce the acyl group (RCO) in organic synthesis. They react with water to produce carboxylic acids, either with alcohols or phenols to form esters and with ammonia and amines to form amides. Acetic anhydride can be employed in cellulose acetate manufactu...
A novel process for the preparation of proline derivatives of formula (I) wherein,R1 is selected from C1-7-alkyl or from formula (II) wherein R4 is selected from C1-7-alkyl, halogen-C1-7-alkyl or from phenyl which is optionally substituted by halogen; R2 is selected from halogen or ...
In order to tune and broaden the properties of PLA-based materials, other cyclization strategies have also been reported aimed at preparation of lactide monomers bearing functional groups, based on the use of variously substituted α-hydroxy acids and α-haloacyl chlorides as precursors. However, ...
iii. converting the resultant free amines 8 into the corresponding amides by known literature procedure, comprising treating the amines with acid chlorides or acid anhydrides in the presence of a base in a heterogeneous phase to obtain the intermediate 9; iv. subjecting the intermediate 9 to selec...
If the term acyl is used in the present description, it denotes the radical of an organic acid which arises formally by eliminating an OH group from the organic acid, for example the radical of a carboxylic acid and radicals of acids derived therefrom, such as thiocarboxylic acid, optionally...
The preferred solvents or diluents include ketones such as acetone, methyl ethyl ketone or cyclohexanone, nitriles such as acetonitrile, esters such as ethyl acetate, ethers such as diethyl ether, tetrahydrofuran or dioxane, sulfoxides such as dimethyl sulfoxide, amides such as dimethylformamide, ...