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 MoreContact:86-513-84128750/13773795976
Address:No.48.Youyi West Road ,Rudong Development Zone,Jiangsu Province,China
KINHENG CHEMICAL(SHANGHAI)CO., LTD.
Contact:+8621-60490170
Address:Room401, No.28,Lane 189, Yangshupu Rd. Shanghai, China.
Shangyu Sanhechemicals Co.,LTD.
Contact:86-0571-56696839
Address:Num.2952,Nanhuan Road,Binjiang District,Hangzhou,China
Contact:86-551-63540590
Address:No 1388 Furong Rd., Hefei, Anhui, China
ZhangJiaGang YaRui Chemical Co.,Ltd.
Contact:0512-58360968
Address:China JiangSu Province Zhang Jia Gang City YangShe Oriental Plaza Building 10 B307
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)
