Metal-free synthesis of activated ynesulfonamides and tertiary enesulfonamides
An operationally simple synthesis of activated ynesulfonamides and enesulfonamides is described. Ynesulfonamides can be obtained through reaction of sulfonylamides with activated bromoalkynes and Triton B in a short time at room temperature. Likewise, terminal alkynes react with sulfonylamides to provide enesulfonamides. Z/E enesulfonamides can be transformed exclusively into E enesulfonamides.
Andna, Lucile,Miesch, Laurence
supporting information
p. 5688 - 5692
(2019/06/19)
Reductions of Imines Using Zirconocene Chloride Hydride
Herein, we describe the fast, chemoselective, and clean reduction of imines with zirconocene chloride hydride. The reaction works well on aromatic and enolizable aliphatic aldimines, as well as ketimines. A range of N-protecting groups and various functio
The N,N-dimethyl-N'-alkylsulfonyldiamides 1-9 were synthesized and partly reacted to yield the N,N-dimethyl-N'-alkyl-N'-benzylsulfonyldiamides 11-16 and 19-24.Trimethyl-4-nitrobenzylsulfonyldiamide (25) is not obtained in this way, but only by special methods, which are described.
Unterhalt, Bernard,Seebach, Edmar
p. 51 - 57
(2007/10/02)
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