ChemInform Abstract: Reductive Dehalogenation of α‐Haloketones with Zinc in Presence of Ammonium Salts under Sonic Conditions.

Abstract

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Sonochemistry: Past, Present and Future

“…Under sonic conditions, the reductive dehalogenation of a-haloketones with zinc in presence of ammonium salts was studied by Rama et a!. 43 . Lori mer et ai.…”

Ultrasound promoted regioselective synthesis of β-iodoethers from olefin-I2-alcohol

“…In continuation of our work on sonochemically accelerated reactions [3][4][5][6][7], we became interested in the ultrasound promoted preparation of the b-iodoethers for two reasons (i) contradicting reports regarding the usage of metal salts as catalysts: Tl (I), Cu (II), Ce (IV) salts [8][9][10][11][12], whose presence is required to catalyse the reaction, while in another report by Mattos and coworker [13] excess of iodine is sufficient to obtain b-iodoethers in moderate to good yields (ii) to find the effect of ultrasound (35 kHz, in a sonic bath) for catalytic activity on the reaction and the use of metal salts as catalysts in presence of ultrasound.…”

Ultrasound assisted synthesis of δ-chloroesters from tetrahydrofuran and acyl chlorides in the presence of catalytic zinc dust

“…In continuation of our work on the use of inexpensive, readily available metals and metal salts for organic functional group transformations [11][12][13][14][15][16][17][18][19][20][21], we expected that acid chlorides may be converted to 1,2-diketones by zinc metal in aprotic solvents. A set of four solvents-hexane, toluene, benzene and THF were selected to study the reaction of acyl halides with zinc dust under sonic conditions.…”