165061-39-2Relevant academic research and scientific papers
Desulfurilative self-coupling reaction of 1,3-thiazolidine-2-thiones and intramolecular non-bonded S?S interaction in the crystallographic structure of the products
Nagao, Yoshimitsu,Nishijima, Hiroaki,Iimori, Hitoshi,Ushirogochi, Hideki,Sano, Shigeki,Shiro, Motoo
, p. 172 - 177 (2000)
An attempt at an asymmetric Pummerer-type reaction of trans-4-benzyloxythiane-1-oxide (1) with 3-trifluoroacetyl-4S-isopropyl-1,3-thiazolidine-2-thione (2) resulted in failure but an attractive desulfurilative self-coupling reaction of 4S-isopropyl-1,3-th
Difluorocarbene-Induced Ring-Opening Difluoromethylation-Halogenation of Cyclic (Thio)Ethers with TMSCF2X (X=Br, Cl)**
Zhang, Rongyi,Li, Qigang,Xie, Qiqiang,Ni, Chuanfa,Hu, Jinbo
supporting information, p. 17773 - 17779 (2021/11/10)
The ring-opening difluoromethylation-halogenation of cyclic (thio)ethers is reported through a simple strategy relying on carbon-chalcogen bond activation with difluorocarbene. The reaction proceeds through in situ protonation of the previously little-known difluoromethylene oxonium or sulfonium ylide intermediate followed by ring-opening with halide ion to afford halogenated acyclic difluoromethyl (thio)ethers that can then be employed for further elaboration. TMSCF2X (X=Br, Cl) are unique reagents to achieve this synthetic purpose, which serve as both the difluorocarbene source and the halide ion source.
CONFORMATIONAL PREFERENCE IN BENZYLOXY- AND SILOXY-SUBSTITUTED THIANES, THIANE 1-OXIDES, AND THIANE 1,1-DIOXIDES
Nagao, Yoshimitsu,Goto, Michimasa,Kida, Kiyoshi,Shiro, Motoo
, p. 419 - 424 (2007/10/02)
Conformer ratios in 4-benzyloxy- and 4-siloxy-substituted thianes, cis- and trans-thiane-1-oxides, thiane 1,1-dioxides, and dihydrothiines were revealed on the basis of their low temperature 1H nmr analyses.Extreme benzyloxy- and siloxy-axial (or -pseudoa
