Chemistry Letters p. 1225 - 1228 (1982)
Update date:2022-08-24
Topics:
Yamamoto, Keiji
Watanabe, Hiroyuki
Phosphorus pentoxide reacts readily with anhydrous hexamethyl-disiloxane (HMDSO) to form mixtures of tetraphosphoric acid trimethyl-silyl esters (so-called PPSE), the composition of which being estimated from (31)P NMR data.PPSE was conveniently used as a condensation reagent for the syntheses of benzimidazoles, indoles, and isoquinoline derivatives.Heterogenized PPSE by using silica gel instead of HMDSO was found to be equally useful.
View More
Xi'an Costrong Pharmaceutical Co., Ltd.
Contact:029- 68576496
Address:Room 2004,Shuibao Building,No.190,South Erhuan Rd, Yanta District,Xi'an,Shaan Xi,China
Contact:+86-13914766747
Address:Floors 21&22, Jin Cheng Tower, No. 216 Middle Longpan Road, Nanjing
Shanghai KFSL Pharmaceutical Technology Co.,Ltd.
Contact:+86-21-39971718
Address:859 jiadingchengliu shanghai
website:http://www.biet.com.cn/
Contact:+86-27-8369 8488
Address:No. 6, Building 21, China Merchants Fanwang, Sixin North Road, Hanyang District, Wuhan City, Hubei Province
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
Doi:10.1063/1.473644
(1996)Doi:10.1271/bbb.70.433
(2006)Doi:10.1007/BF02464359
(1997)Doi:10.1021/acscatal.9b02478
(2019)Doi:10.1016/j.materresbull.2012.05.042
(2012)Doi:10.1139/v67-419
(1967)
