Journal of the Chemical Society. Perkin transactions I p. 2799 - 2802 (1996)
Update date:2022-09-26
Topics:
Loeffler
Schobert
By a one-pot procedure, tetronic acids, tetronates, coumarins, benzoxepinones and their N- and S-analogues are readily accessible from keteneylidene(triphenyl)phosphorane 2 and carboxylic esters bearing OH, NHR or SH groups in an α-, β- or γ-position by an addition/Wittig olefination/(Claisen rearrangement) sequence. This cascade can be controlled by temperature variation. Extension of this procedure by a further addition step yielding annulated bisheterocycles such as the furoquinolone 28 is possible in some cases.
View MoreAnhui Dexinjia Biopharm Co., Ltd
Contact:+86-531-82375818
Address:9 Hexie Road, kaifaqu, Taihe
Fujian Huitian Biological Pharmacy Co., Ltd.
Contact:0086-598-8300831; 8339920
Address:No.46,Taijiang Road,Sanming City,Fujian,China
Suqian Ruixing Chemical Co., Ltd.
Contact:+86-527-80805666（总机）;84836008(销售)
Address:3 Jingsilu, Zone north, Hubin Xincheng Development Park, Suqian, China
website:http://www.lonwinchem.com
Contact:Tel: 86-21-59858395
Address:No#966,Huaxu Road,Shanghai 201702,P.R.China
guide(suzhou) fine materials co. ltd
Contact:0512-80972173
Address:21st Building, No.369 Lushan Rd, New District Suzhou China 215129
Doi:10.1002/ejoc.201100041
(2011)Doi:10.1007/s10562-011-0605-3
(2011)Doi:10.1016/S0040-4039(00)97824-9
(1990)Doi:10.1002/chem.201202251
(2012)Doi:10.1016/j.tetlet.2011.03.059
(2011)Doi:10.1002/bkcs.10610
(2016)
