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
Wuxi Pharma-Trading Import & Export Co.,Ltd.
Contact:+86-510-82304590 82716390
Address:Room 523,Youzu Alliance Building,No.88 Renmin Zhonglu,Wuxi,Jiangsu,China
Contact:+86-10-67147360/67107388
Address:No.18 Guangming Zhongjie, Chongwen District, Beijing, 100061, China
Zhuhai Rundu Pharmaceutical co.,Ltd
Contact:+86-756-7630755
Address:No.6,North Airport Road,Sanzao Town,Jinwan District
Beijing ZhongDaXinHe Chemical Product Co.,Ltd(expird)
Contact:010-52876516
Address:tongzhoubeiyuan
Sichuan Sangao Biochemical Co., Ltd
Contact:+86-28-84874233
Address:19F, Bldg.2, Shudu Center, Tianfu 2nd St., Hi-tech zone, Chengdu 610041, Sichuan Province, 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)
