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A novel synthesis of indolyl and benzo[b]thienyl imines and Diels-Alder reactions promoted by indium trichloride

✍ Scribed by Govindarajulu Babu; Paramasivan T. Perumal

Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
467 KB
Volume
55
Category
Article
ISSN
0040-4020

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✦ Synopsis

Anhydrous indium trichloride is found to catalyze the reaction of Schiff's bases derived from substituted anilines with 3-chioro-lH-indole-2-carboxaldehyde and 3-chlorobenzo[b]thiophene-2-carboxaldehyde which resulted in new route to indolyl and benzo[b]thienyl imines. These imines reacted with cyelopentadiene and 3,4-dihydro-2H-pyran to afford new quinoline derivatives in good yields.

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