Functionalization of α‐C(sp
<sup>3</sup>
)−H Bonds in Amides Using Radical Translocating Arylating Groups
作者:Niklas Radhoff、Armido Studer
DOI:10.1002/anie.202013275
日期:2021.2.15
α‐C−H arylation of N‐alkylamides using 2‐iodoarylsulfonyl radical translocating arylating (RTA) groups is reported. The method allows the construction of α‐quaternary carbon centers in amides. Various mono‐ and disubstituted RTA‐groups are applied to the arylation of primary, secondary, and tertiary α‐C(sp3)−H‐bonds. These radical transformations proceed in good to excellent yields and the cascades
Switchable Divergent Synthesis in Gold-Catalyzed Difunctionalizations of <i>o</i>-Alkynylbenzenesulfonamides with Aryldiazonium Salts
作者:Jun Li、Hongwei Shi、Shan Zhang、Matthias Rudolph、Frank Rominger、A. Stephen K. Hashmi
DOI:10.1021/acs.orglett.1c02621
日期:2021.10.15
Gold-catalyzed difunctionalizations of o-alkynylbenzenesulfonamides with aryldiazonium salts are reported herein. Upon irradiation with the blue LEDs, benzosultam products were formed via aminoarylation accompanied by the release of N2. Without irradiation, aryldiazonium salts were engaged as efficient electrophiles, facilitating electrophilic deaurations of the vinyl-Au(I) intermediates, followed
本文报道了金催化的邻炔基苯磺酰胺与芳基重氮盐的双官能化。在用蓝色 LED 照射后,苯磺舒坦产物通过氨基芳基化形成,伴随着 N 2的释放。在没有辐照的情况下,芳基重氮盐作为有效的亲电试剂,促进乙烯基-Au(I) 中间体的亲电脱氢,然后互变异构化得到N-芳基取代的 α-亚氨基 ( E )-腙。6 -endo-dig和 5 -exo-dig环化的区域选择性非常好。
Sulfonylamino(thio)carbonylverbindungen als Herbizide oder Pflanzenwachstumsregulatoren
申请人:Bayer CropScience GmbH
公开号:EP1717228A1
公开(公告)日:2006-11-02
Die vorliegende Erfindung betrifft eine Verbindung der Formel (I) und/oder deren Salze
worin
R2 ein Heterocyclylrest ist und R, R1, W wie in der Beschreibung definiert sind.
Die Verbindung eignet sich im Bereich des Pflanzenschutzes.
Sulfonylamino(thio)carbonyl compounds are used to control unwanted plants or to regulate growth in plants. Sulfonylamino(thio)carbonyl compounds are applied to plants, the seed or the area on which the plants are growing to control the growth of such plants.