Helvetica Chimica Acta p. 411 - 416 (1990)
Update date:2022-08-02
Topics:
Kvita, Vratislav
3-Substituted diethyl pent-2-enedioates are easily formylated by means of ethyl formate/TiCl4/4-methylmorpholine to produce the ethoxymethylene derivatives, which are smoothly cyclized either with HCOOH or PPA to the corresponding 2-oxo-2H-pyran-5-carboxylate derivatives.
View MoreLIANYUNGANG YC FINE CHEMICAL CO., LTD
Contact:+86-518-858 99188
Address:Shangdong Modern Bldg, South Greenpark Road, Lianyungang, Jiangsu Pro. China
Chongqing Werlchem Fine Chemical Co. Ltd
Contact:+86-23-67521957
Address:NO.15,Fortune Road,Yubei District,401121,Chongqing,China
Dalian Synco Chemical Co., Ltd.
Contact:+86-411-83635150
Address:Rm 1004, 24, Tangshan Street, Dalian
FUJIAN SHANSHUI CHEMICAL CORP.LTD.
Contact:+86-151-59920036
Address:Jinqiao Gareden, jo@fj-xinyi.com
Nanjing Qirui Material Co., Ltd.
Contact:+86-25-52320053
Address:F4-5, #17 Building, Chuang Yi Yuan, No.6 Guanghua East Street, Nanjing, 210007 P.R.China
Doi:10.1016/0022-328X(84)80092-3
(1984)Doi:10.1002/anie.200601067
(2006)Doi:10.1021/jo00191a019
(1984)Doi:10.1002/cbdv.201900550
(2020)Doi:10.1002/adsc.201600350
(2016)Doi:10.1021/ja063322x
(2006)
