Kumar, A. Sanjeeva published the artcileIndium/Fe(III)- mediated regioselective β-cross-coupling aldol type addition reaction of activated alkenes with isatins/isatinimines in aqueous media, HPLC of Formula: 1677-47-0, the main research area is hydroxy oxindole regioselective preparation; alkene isatin indium iron catalyst coupling aldol addition; amino oxindole regioselective preparation; isatinimine alkene indium iron catalyst Mannich coupling.
A highly efficient and regioselective synthesis of 3-amino/hydroxy-substituted oxindole derivatives, e.g., I and II, via β-cross coupling aldol type addition reaction of activated alkenes with isatins and Mannich-type coupling of isatinimines in presence of indium/Fe (III) was described. This synthetic protocol explores a broad substrate scope and smoothly proceeds under base-free conditions and resulting products were obtained in a short reaction time with moderate to high yields.
RSC Advances published new progress about Aldol addition. 1677-47-0 belongs to class indole-building-block, name is 4,5-Dichloroisatin, and the molecular formula is C8H3Cl2NO2, HPLC of Formula: 1677-47-0.
Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles