Yilmaz, Mehmet published the artcileMicrowave assisted synthesis of 2,3-dihydro-4H-benzo[4,5]thiazolo[3,2-a]furo[2,3-d] pyrimidin-4-ones by radical addition of 2-hydroxy-4H-benzo[4,5]thiazolo[3,2-a] pyrimidin-4-ones to various conjugated alkenes and dienes mediated Mn(OAc)3, Synthetic Route of 95-24-9, the publication is Tetrahedron (2022), 132806, database is CAplus.
Synthesis of chem. important, novel 2,3-dihydro-4H-benzo [4,5]thiazolo [3,2-a]furo [2,3-d]pyrimidin-4-one derivatives, I (R1 = H, Me, F, CF3; R2 = H, Me, Ph, 4-F-C6H4; R3 = Ph, 2-thienyl, 4-F-C6H4, etc.), was approached in this work. These heterocyclic compounds were synthesized in good to excellent yields from the reaction of Mn(OAc)3 mediated radical addition of 2-hydroxy-4H-benzo [4,5]thiazolo [3,2-a]pyrimidin-4-one derivatives to various conjugated alkenes and dienes under microwave irradiation in mild conditions. Also, a different compound skeleton, 2,3-dihydrobenzo [4,5]imidazo [1,2-a]furo [2,3-d]pyrimidin-4(10H)-one, II, was obtained from the reaction of 2-hydroxy-10-methylbenzo [4,5]imidazo [1,2-a]pyrimidin-4(10H)-one and 1,1-diphenylethylene for the first time. While no product was obtained with conventional method in radical addition reactions, dihydrofuropyrimidines, I,andcompd. II were synthesized in excellent yields using microwave irradiating method at 150°C, 350 W for 60 s.
Tetrahedron published new progress about 95-24-9. 95-24-9 belongs to thiazole, auxiliary class Organic Pigment, name is 6-Chlorobenzothiazol-2-ylamine, and the molecular formula is C24H29N5O3, Synthetic Route of 95-24-9.
Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica