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6-ETHYL-7-HYDROXY-3-(4-METHYL-1,3-THIAZOL-2-YL)-4H-CHROMEN-4-ONE synthesis

5synthesis methods
19785-39-8 Synthesis
(4-METHYL-1,3-THIAZOL-2-YL)ACETONITRILE

19785-39-8
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6-ETHYL-7-HYDROXY-3-(4-METHYL-1,3-THIAZOL-2-YL)-4H-CHROMEN-4-ONE

170466-84-9
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Yield:-

Steps:

Multi-step reaction with 2 steps
1.1: boron trifluoride diethyl etherate / diethyl ether / 0.17 h / 25 - 27 °C
1.2: 6 h / 30 - 40 °C
2.1: orthoformic acid triethyl ester; pyridine; piperidine / 4 h / 70 - 80 °C

References:

Andrews, Stephen P.;Mason, Jonathan S.;Hurrell, Edward;Congreve, Miles [MedChemComm,2014,vol. 5,# 5,p. 571 - 575]