cheminform abstract: facile synthesis of 4-acetyl-coumarins, -thiocoumarins and -quinolin-2(1h)-one...

ChemInform 2011, 42, issue 43 © 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Benzopyran derivatives R 0350 DOI: 10.1002/chin.201143128 Facile Synthesis of 4-Acetyl-coumarins, -thiocoumarins and -quinolin-2(1H)-one via Very High α-Regioselective Heck Coupling on Tosylates. — The interesting ap- proach includes Pd-catalyzed Heck coupling of the tosylates with ether (II) followed by acidic rearrangement of the resulting vinyl ether intermediate. — (VALENTE, S.; KIRSCH*, G.; Tetrahedron Lett. 52 (2011) 27, 3429-3432, http://dx.doi.org/10.1016/j.tetlet.2011.04.033 ; Lab. Ing. Mol. Biochim. Pharmacol., Inst. Jean Barriol, Univ. Metz, F-57070 Metz, Fr.; Eng.) — Mais 43- 128

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Page 1: ChemInform Abstract: Facile Synthesis of 4-Acetyl-coumarins, -thiocoumarins and -quinolin-2(1H)-one via Very High α-Regioselective Heck Coupling on Tosylates

Benzopyran derivativesR 0350 DOI: 10.1002/chin.201143128

Facile Synthesis of 4-Acetyl-coumarins, -thiocoumarins and -quinolin-2(1H)-one via Very High α-Regioselective Heck Coupling on Tosylates. — The interesting ap-proach includes Pd-catalyzed Heck coupling of the tosylates with ether (II) followed by acidic rearrangement of the resulting vinyl ether intermediate. — (VALENTE, S.; KIRSCH*, G.; Tetrahedron Lett. 52 (2011) 27, 3429-3432, http://dx.doi.org/10.1016/j.tetlet.2011.04.033 ; Lab. Ing. Mol. Biochim. Pharmacol., Inst. Jean Barriol, Univ. Metz, F-57070 Metz, Fr.; Eng.) — Mais

43- 128

Coumarins 121007101349 Phpapp02

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