60066-48-0Relevant academic research and scientific papers
Phase-Transfer Catalyzed Synthesis of Amides and Esters of Carboxylic Acids
Jaszay, Zsuzsa M.,Petnehazy, Imre,Toeke, Laszlo
, p. 745 - 747 (2007/10/02)
A convenient one-pot procedure is reported for the preparation of carboxamides and carboxylic acid esters from carboxylic acids and amines or alcohols, respectively.The carboxylic acids are activated by sulfonyl chlorides under solid-liquid phase-transfer conditions using solid potassium carbonate as base and a lipophilic quaternary ammonium salt as catalyst.
Process for preparing dihalovinylcyclopropanecarboxylic acids
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, (2008/06/13)
A cyclopropanecarboxylic acid of the formula STR1 is prepared by the reaction of a compound of the formula STR2 with an alkali metal hydroxide or alkaline earth metal hydroxide in an ether type solvent. R1, R2, and R4 each independently is hydrogen or a hydrocarbon residue, R3 is hydrogen or lower alkyl, X is halogen, and A is --CH2 --CX, 3 or --CH=CX2.
Process for preparing dihalovinylcyclopropanecarboxylates
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, (2008/06/13)
Novel syntheses of dihalovinylcyclopropanecarboxylates, including potent insecticides, are described. The processes begin with the reaction between an alkenol and an orthoester to produce a γ-unsaturated carboxylate, followed by the catalyzed addition of a carbon tetrahalide to the double bond and dehydrohalogenation to produce a cyclopropane derivative.
