Tetrahedron p. 9431 - 9438 (1991)
Update date:2022-07-29
Topics:
Cremins
Hayes
Wallace
Chromones (4-oxo-4H-1-benzopyrans) bearing electron-withdrawing substituents at C-3 react with 2-haloethanols and potassium carbonate in acetone to produce tetrahydrofuro[2,3-b][1]benzopyran-4-ones, the heteroannulation proceeding via the conjugate addition of the haloethanol to the chromone, followed by intramolecular alkylation. Under the conditions of the reaction, the products derived from chromone-3-carbaldehydes undergo in situ deformylation.
View MoreChangsha Yonta Industry Co., Ltd.
Contact:+ 86-731-8535 2228
Address:Rm.1717, North Bldg., No.368, East 2nd Ring Road(2nd Section)
Baoding City Light Industry And Textiles Imp.& Exp. Corp. Chemical Department.
Contact:86-312-3262436
Address:NO.658 CHAOYANG SOUTH STREET,BAODING CITY HEBEI CHINA
Feiyang Biotechnology Co., Ltd.
Contact:+86-533-7866339
Address:Qilu Chemistry Park, 200m north of Management Community Building of Park
Henan PURUI Pharmaceutical Co., Ltd.
website:http://www.puruipharm.com
Contact:17739583555
Address:Yezhuangqiao,Xihua town, Henan province
Contact:+86-20-62802632;62802633
Address:Room 330 GIGCAS Building,No.511 Kehua Street,Tianhe District
Doi:10.1021/om300552f
(2012)Doi:10.1016/j.jorganchem.2013.01.016
(2013)Doi:10.1016/0040-4039(91)80244-Z
(1991)Doi:10.1039/c39910001672
(1991)Doi:10.1055/s-1991-26622
(1991)Doi:10.1016/0040-4020(96)00207-4
(1996)
