Journal of the Chemical Society. Perkin transactions I p. 485 - 489 (1996)
Update date:2022-08-05
Topics:
Aitken, R. Alan
Herion, Hugues
Horsburgh, Caroline E. R.
Karodia, Nazira
Seth, Shirley
Seven examples of the alkynoyl phosphorus ylides 5 have been prepared and are found, upon flash vacuum pyrolysis (FVP) at 750°C, to undergo extrusion of Ph3PO to give the unsymmetrical 1,3-diynes 9 in moderate yield. Six examples of the oxalyl diylides 6 have been prepared and their fully assigned 13C NMR spectra are presented. Upon FVP, those with R = aryl undergo two-fold extrusion of Ph3PO to give symmetrical 1,3-diynes 13 but this requires the unusually severe temperature of 900°C. In contrast those with R = CO2Me, CO2Et or COPh undergo complete reaction at 500°C but afford only Ph3PO and fragmentation products.
View MoreDalian Synco Chemical Co., Ltd.
Contact:+86-411-83635150
Address:Rm 1004, 24, Tangshan Street, Dalian
Hangzhou Showland Technology Co., Ltd.
Contact:86-571-88920516
Address:ROOM2118,NO.553,WENSAN ROAD,HANGZHOU,CHINA
VanderArk International Limited
Contact:86-10-82437576
Address:Qing He
Sanming Coffer Fine Chemical Industrial Co., Ltd
website:http://www.cofferxm.com/
Contact:+86-598-5853979
Address:Jin-sha Yuan Chuang-ye Park,Hi-Tech Development Zone,Sanming City P.R.China
Weifang Yukai Chemical Co.,Ltd.
website:http://www.yukaichem.com/en.html
Contact:+86-536-8865336
Address:binhai economic development zone，262737 shangdong，china
Doi:10.1016/S0040-4020(01)96384-7
(1985)Doi:10.1002/chem.201705059
(2017)Doi:10.1039/c39870000643
(1987)Doi:10.1016/S0040-4039(00)94786-5
(1985)Doi:10.1007/BF00798790
(1985)Doi:10.1055/s-1985-31175
(1985)
