5873-86-9Relevant articles and documents
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Khouri,F.,Kaloustian,M.K.
, p. 5067 - 5070 (1978)
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An Expeditious Route to trans-Configured Tetrahydrothiophenes Enabled by Fe(OTf)3-Catalyzed [3+2] Cycloaddition of Donor–Acceptor Cyclopropanes with Thionoesters
Matsumoto, Yohei,Nakatake, Daiki,Yazaki, Ryo,Ohshima, Takashi
supporting information, p. 6062 - 6066 (2018/03/28)
A synthetic route to trans-configured tetrahydrothiophenes (THTs) through Fe(OTf)3-promoted [3+2] cycloaddition of donor–acceptor cyclopropanes with thionoesters was developed. The cycloaddition proceeded in high yield with high diastereoselectivity, affording transient α-alkoxy THTs. Not only aromatic and aliphatic thionoesters, but also thionolactone were applicable to the present iron catalysis. Further transformation of the S,O-ketal functionality of the product was achieved in a highly trans diastereoselective manner. Moreover, the utility of our methodology was clearly demonstrated by the synthesis of enantioenriched trans-configured THTs.
Aromatic selenoic,selenothioic,and diselenoic acid salts:isolation, characterization, and 77senmr spectra,together with theoretical elucidation
Murai, Toshiaki,Nishi, Daisuke,Hayashi, Satoko,Nakanishi, Waro
supporting information, p. 677 - 692 (2014/07/08)
To systematically elucidate molecular and electronic structures of aromatic selenoic acid salts and their heavier congeners, they were synthesized by reacting selenoic, selenothioic, and diselenoic acid Se-[2-(trimethylsilyl) ethyl] esters with ammonium f
