721453-65-2Relevant articles and documents
Fe(III)/ l -Valine-Catalyzed One-Pot Synthesis of N -Sulfinyl- and N -Sulfonylimines via Oxidative Cascade Reaction of Alcohols with Sulfinamides or Sulfonamides
Zhang, Guofu,Xing, Yunzhe,Xu, Shengjun,Ding, Chengrong,Shan, Shang
supporting information, p. 1232 - 1238 (2018/03/23)
An efficient Fe(III), l -valine, and 4-OH-TEMPO catalytic system was found for the oxidation of alcohols followed by condensation with sulfinamide or sulfonamide in one pot for the synthesis of N -sulfinyl- and N- sulfonylimines compounds under mild conditions. This transformation accommodates a variety of substrates, shows high functional-group tolerance, and affords the corresponding products in good to excellent yields.
Catalytic asymmetric synthesis of β-sultams as precursors for taurine derivatives
Zajac, Marian,Peters, Rene
supporting information; experimental part, p. 8204 - 8222 (2011/02/27)
β-Sultams, biologically interesting sulfonyl analogues of β-lactams, have been prepared by an organocata-lytic asymmetric formal [2+ 2]-cycloaddition approach of non-nucleophilic imines with alkyl sulfonyl chlorides. In the case of very electron poor N-to
Enantioselective C-C bond formation to sulfonylimines through use of the 2-pyridinesulfonyl group as a novel stereocontroller
Nakamura, Shuichi,Nakashima, Hiroki,Sugimoto, Hideki,Sano, Hideaki,Hattori, Masataka,Shibata, Norio,Toru, Takeshi
experimental part, p. 2145 - 2152 (2009/04/08)
Enantioselective C-C bond formation to 2-pyridinesulfonylimines afforded products with good enantioselectivity. Dynamic induction of chirality on the sulfur by coordination of a chiral Lewis acid to the pyridine nitrogen and one of the prochiral sulfonyl oxygens induces enantioselectivity. Since the 2-pyridine-sulfonyl group can easily be removed after the reaction, it acts not only as an activating group but also as an efficient Stereocontroller.
