Journal of Organic Chemistry p. 5186 - 5189 (1995)
Update date:2022-08-04
Topics:
Quin, Louis D.
Ionkin, Alexey S.
Pyrolysis in a packed tube of the vapor from three 2,4,6-tris(aryloxy)-1,3,5,2,4,6-trioxatriphosphorinanes was performed at 300-350 deg C and 1E-6 mm; the product was collected on a cold finger chilled by liquid nitrogen.The cracking of the trimer was complete, and the product at -195 deg C appeared to consist only of the monomeric aryl phosphenite, ArOP=O.On warming, dimerization occured, later followed by trimer formation.The weak 31P NMR signal for the phosphenite (about δ 238 for three O-aryl derivatives) persisted in the solution for several weeks if water was rigorously excluded.Treatment of the phosphenite with water or alcohols at -195 deg C gave a mixture of products; the major product (ArO-PH(O)OH) came from addition of the nucleophile to the P=O bond, but significant amounts (10-20percent) of dialkyl H-phosphonates (HP(O)(OR)2) were present, apparently from displacement of the O-aryl substituent of the phosphenite, followed by addition to the double bond.
View MoreJiangsu Wanlong Chemical Co., Ltd.
website:http://www.wanlongchem.com
Contact:+86-511-86810993 0086-511-8681 0888;
Address:Quanzhou Town, Danyang City, Jiangsu
website:http://www.enbridgepharm.com
Contact:+86-510-83591909
Address:Huishan Zone, Wuxi City, Jiangsu Province, P.R.China
website:http://www.acrospharmatech.com
Contact:+1-3234804688
Address:Flat/RM 1502,Easey Commercial building 253-261 Hennessy Road,Wanchai,HongKong
Contact:0571-
Address:zhejing
Hangzhou Ocean Chemical Co., Ltd.
website:http://www.hzoceanchem.com
Contact:+86-571-88025872, 28272092, 28272096
Address:Room 623 ,Building No 1 , COFCO Radius Commercial Center Xiwen Road, Xiacheng District, Hangzhou, Zhejiang Province, China
Doi:10.1021/jo970815z
(1998)Doi:10.1021/ja02046a007
(1900)Doi:10.1016/S0040-4020(99)00122-2
(1999)Doi:10.1007/s11164-015-2235-7
(2016)Doi:10.3987/com-98-s(h)94
(1999)Doi:10.3987/com-98-8458
(1999)