Electrochemical Deoxygenative Thiolation of Preactivated Alcohols and Ketones
作者:Feng Zhang、Yang Wang、Yi Wang、Yi Pan
DOI:10.1021/acs.orglett.1c02738
日期:2021.10.1
This work describes an electrochemically promoted nickel-catalyzed deoxygenative thiolation of alcohols and ketones under mild conditions. Excellent substrate tolerance and good chemical yields can be achieved by graphene/nickel foam electrodes in an undivided cell. Further study to gain mechanistic insight into this electrochemical cross-coupling has been carried out.
THE PREPARATION AND SOME CLEAVAGE REACTIONS OF ALKYL AND SUBSTITUTED ALKYL METHANESULPHONATES: THE SYNTHESIS OF FLUORIDES, IODIDES, AND THIOCYANATES
作者:F. L. M. Pattison、J. E. Millington
DOI:10.1139/v56-099
日期:1956.6.1
Representative esters of methanesulphonic acid were synthesized, and cleaved to form the corresponding fluorides, iodides, and thiocyanates. From this work was developed a convenient laboratory procedure for converting alcohols to fluorides.
Method of treating helminthiasis by parenteral or topical administration
申请人:E. R. Squibb & Sons, Inc.
公开号:US04076825A1
公开(公告)日:1978-02-28
A method is provided for treating or inhibiting helminthiasis by parenterally or topically administering sulfoxide derivatives of benzimidazoles having the structure ##STR1## wherein R.sup.1 is lower alkyl or phenyl-lower alkyl, and R.sup.2 is lower alkyl. Pharmaceutical compositions for use in the above method are also provided.
Enantiocontrol in intermolecular cyclopropanations: use of diazosulfonate esters
作者:Tao Ye、Congying Zhou
DOI:10.1039/b412285b
日期:——
The novel use of α-diazosulfonate esters as alternative cyclopropanating agents to diazoacetates is investigated. The effects of structure of both substrate and ligand on diastereo- and enantioselectivity are studied, and the catalytic ability of different metals is compared.
A new protecting group for the synthesis of complex sulfonates
作者:Meiqiang Xie、Theodore S. Widlanski
DOI:10.1016/0040-4039(96)00883-0
日期:1996.6
proved to be a useful protectinggroup for the construction of sulfonate-containing analogs of nucleosides. The syntheses of useful uridine or adenosine 3′-C-methanesulfonate analogs 1a or 1b that fail when using ethyl or isopropyl sulfonate esters, are readily accomplished with the isobutyl ester as a protectinggroup. In addition, alkylation reactions to give homologated sulfonates such as 2 are also