80563-98-0Relevant academic research and scientific papers
Ring-opening reactions of donor-acceptor cyclopropanes with cyclic ketals and thiol ketals
Cai, Hu,Chen, Yan,Cheng, Qihang,Yin, Lei,Zhang, Dongxin,Zhang, Qian-Feng,Zhong, Junchao
supporting information, p. 6492 - 6496 (2020/11/10)
1,3-Cyclohexandione derived cyclic ketals and thiol ketals were used as O- and S-nucleophiles, respectively, for the ring opening of donor-acceptor cyclopropanes catalyzed by Cu(OTf)2 and a series of functionalized alkylene glycol diethers and dithiol diethers were obtained in good to high yields under mild conditions. This journal is
Studies on the selective hydrolysis of bis-dithiolanes with cerric ammonium nitrate: synthesis of 1,4-dithiaspirodecan-7-ones
Nangia, A.,Chandrakala, P. S.
, p. 516 - 519 (2007/10/03)
Dimedone 10 is directly ketalised with ethanedithiol to bis dithiolane 11 using Dean-Stark conditions.The selective hydrolysis of bis-dithiolane 11 to the ketodithiolane 12 employing cerric ammonium nitrate (CAN) proceeds in 35percent yield under optimal conditions.A few examples are reported.
The substrate- and stereoselectivity of microbial reductions of 1,4-dithiaspirodecanones and 1,5-dithiaspiroundecanones
Takemura, Tetsuo,Hosoya, Yoshiko,Mori, Nobuo
, p. 523 - 529 (2007/10/02)
The title spirocyclic ketones, possessing possible substitution patterns 1,4-dithiaspirodecan-6-one (1a), -7-one (3a), and -8-one (5a) and 1,5-dithiaspiroundecan-7-one (2a), -8-one (4a), and -9-one (6a), have been reduced with new strains of yeast (Saccharomyces cerevisiae, JCM 1819 and JCM 2214).Reductions of the prochiral ketones 1a-4a occur with high enantiofacial selectivity on the preparative scale (up to 99percent ee).The product alcohols (1,4-dithiaspirodecan-6-ol (1b) and -7-ol (3b) and 1,5-dithiaspiroundecan-7-ol (2b) and -8-ol (4b)) have theS configuration, as confirmed by 2D COSY experiments of the (S)-MTPA ester of 1b-4b using the configuration correlation model of Mosher.
The Reaction of 2-Ethoxy-1,3-oxathiolane with Carbonyl Compounds in the Presence of ZnCl2 or HgCl2
Tanimoto, Shigeo,Jo, Shigeo,Sugimoto, Toyonari,Okano, Masaya
, p. 3237 - 3238 (2007/10/02)
In the reaction of 2-ethoxy-1,3-oxathiolane with carbonyl compounds in the presence of ZnCl2 or HgCl2, it has been found that only the breaking of the endocyclic bond (C-O or C-S bond) occurs, while the breaking of the exocyclic C-O bond to give the 1,3-o
