Boron trifluoride and indium(III) trifluoromethanesulfonate were found to efficiently catalyse the isomerisation of thionolactones to thiolactones in good yields. When applied to an optically active γ-thionolactone, the isomerisation reaction proceeded with a complete inversion of configuration by using BF3·Et2O.
Reaction of thionolactones with zinc enolate: new synthesis of vinylogous carbonates
作者:Hyeon Kyu Lee、Jia Kim、Chwang Siek Pak
DOI:10.1016/s0040-4039(99)01231-9
日期:1999.8
Reaction of various thionolactones, prepared from the lactones and Lawesson's reagent, with methyl bromozinc-acetate afforded the corresponding vinylogous carbonates in good yields under mild conditions. (C) 1999 Elsevier Science Ltd. All rights reserved.
Solvent-free thionation of γ-lactones under microwave irradiation
A series of gamma-thionolactones was synthesized, with good yields, using a new combination of Lawesson's reagent (LR) and hexamethyldisiloxane (HMDO) in solvent-free conditions under microwave irradiation. (C) 2003 Elsevier Ltd. All rights reserved.
Indium-Catalyzed Direct Conversion of Lactones into Thiolactones and Selenolactones in the Presence of Elemental Sulfur and Selenium
作者:Norio Sakai、Shuhei Horikawa、Yohei Ogiwara
DOI:10.1055/s-0036-1591849
日期:2018.2
Abstract The direct conversion of lactones into thiolactones with elemental sulfur (S8) catalyzed by InCl3/PhSiH3 in a one-pot reaction is described. This catalytic system was successfully applied to the novel preparation of selenolactones from lactones and selenium. The direct conversion of lactones into thiolactones with elemental sulfur (S8) catalyzed by InCl3/PhSiH3 in a one-pot reaction is described
Degradable vinyl copolymers through thiocarbonyl addition–ring-opening (TARO) polymerization
作者:Nathaniel M. Bingham、Peter J. Roth
DOI:10.1039/c8cc08287a
日期:——
dibenzo[c,e]oxepane-5-thione with acrylates, acrylonitrile, and N,N-dimethylacrylamide afforded copolymers containing a controllable amount of backbone thioesters which could be selectively cleaved. The process is compatible with RAFT polymerization and promising for the development of advanced degradable polymers.