Blue LED-Promoted Oxathiacetalization of Aldehydes and Ketones
作者:You-Chen Liu、Daggula Mallikarjuna Reddy、Xin-An Chen、Yi-Chen Shieh、Chin-Fa Lee
DOI:10.1002/ejoc.202000218
日期:2020.5.10
A visible‐light‐promoted oxathiacetalization of aldehydes and ketones with 2‐mercaptoethanol and 3‐mercaptopropan‐1‐ol in the presence of eosin Y as catalyst is described leading to the formation of 1,3‐oxathiolanes and 1,3‐oxathianes at ambient temperature and under metal‐free conditions. The solvent is playing vital role in the protection of carbonyl compounds with mercaptoalcohol.
Stereoselective preparation of trifluoromethyl containing 1,4-oxathiolane derivatives through ring expansion reaction of 1,3-oxathiolanes
作者:Shifa Zhu、Chunhui Xing、Shizheng Zhu
DOI:10.1016/j.tet.2005.10.050
日期:2006.1
Trifluoromethyl containing 1,4-oxathiolanes are synthesized in excellent yields and high stereoselectivities from the expansion reactions of sulfur ylide intermediates, which were prepared from the reaction of 2-diazo-3,3,3-trifluoro-propionic acid methyl ester and 1,3-oxathiolanes in the presence of Rh2(OAc)4.
A remarkable bismuth nitrate-catalyzed protection of carbonyl compounds
作者:Neeta Srivastava、Swapan K. Dasgupta、Bimal K. Banik
DOI:10.1016/s0040-4039(02)02821-6
日期:2003.2
Bismuth nitrate has been found to be an outstanding catalyst for the protection of carbonyl compounds as acetal, ketal, mixed ketal and thioketal with an excellent yield. (C) 2003 Elsevier Science Ltd. All rights reserved.
Kim, Yong Hae, Phosphorus, Sulfur and Silicon and the Related Elements, 1993, vol. 74, # 1-4, p. 249 - 260
作者:Kim, Yong Hae
DOI:——
日期:——
Efficient regeneration of aldehydes from their corresponding 1,3-oxathiolanes in the absence of solvent
A mild and efficient method for the oxidative deprotection of 1,3-oxathiolanes with Fe(NO3)(3)center dot 9H(2)O and Cu(NO3)(2)center dot 3H(2)O in the absence of solvent is reported. (C) 2010 Farhad Shirini. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.