
Phosphorus, Sulfur and Silicon and the Related Elements p. 71 - 81 (2000)
Update date:2022-08-05
Topics:
Firouzabadi, Habib
Iranpoor, Naser
Shaterian, Hamid Reza
Varions types of carboxylic acids can be converted effectively to their corresponding TBDMS and TIPS esters using TBDMSCI and TIPSCI in the presence of imidazole under solvent-free conditions. The advantage of this modified method in comparison with that reported by Corey is the elimination of DMF, which eliminates aqueous work-up. The method is not a time-consuming process and the reactions proceed spontaneously. By this method, absolute chemoselectivity for the protection of carboxylic acid functions in the presence of 2°, 3° hydroxyl groups are observed.
View MoreContact:+86-570-4336358
Address:No.87 Building,Tianqian,Sidu Town
Lanzhou huibang biological chemical technology Co., LTD
Contact:0931-7843964
Address:NO.2011,Yannan Road,Chengguan,
hangzhou sunchem trading co., ltd.
Contact:13588470430--
Address:Room 406-407, the 4th Building, No549
Daqing E-shine Chemical Co.,LTD
Contact:0086-024-31285112
Address:Hongweiyuan area, Ranghulu district
website:http://www.shochem.com
Contact:021-50800795
Address:No.1043, Halei Rd, Zhangjiang Hi-Tech Park, Shanghai, Postcode 201203, China
Doi:10.1021/ja00749a077
(1971)Doi:10.1002/cssc.202002111
(2021)Doi:10.1002/anie.201712088
(2018)Doi:10.1002/ejoc.201200670
(2012)Doi:10.1016/S0040-4039(02)01714-8
(2002)Doi:10.1002/hlca.19820650521
(1982)