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Esmaeili, Abbas Ali; Mesbah, Fariba; Zangouei, Mahdieh; Amini-Ghalandarabad, Saeid; Tasmimi, Masoud; Habibi, Azizollah; Fakhari, Ali Reza; Khojastehnezhad, Amir
Research on chemical intermediates, 09/2021, Volume: 47, Issue: 9Journal Article
An efficient, simple and fast procedure has been developed for the synthesis of a novel types of pyrano2,3- d 1,3thiazolo3,2- a pyrimidine derivatives through the one-pot three-component condensation reaction of 7-hydroxy-2,3-dihydro-5 H -1,3thiazolo3,2- a pyrimidine-5-one, malononitrile and aromatic aldehydes in the presence DIPEA (N,N-diisopropylethylamine) as an available organo-base catalyst. This proposed procedure leads to the synthesis of desired products in short reaction times (5–10 min) and excellent isolated yields (90–94%). Graphic abstract
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