Monofluoromethyl‐Substituted Sulfonium Ylides: Electrophilic Monofluoromethylating Reagents with Broad Substrate Scopes
作者:Yafei Liu、Long Lu、Qilong Shen
DOI:10.1002/anie.201704175
日期:2017.8.7
Two electrophilic monofluoromethylating reagents, monofluoromethyl(phenyl)sulfonium bis(carbomethoxy)methylide (3 a) and monofluoromethyl(4‐nitrophenyl)sulfonium bis(carbomethoxy)methylide (3 b), and their reactions under mild conditions with a variety of nucleophiles, such as alcohols and malonate derivatives, sulfonic and carboxylic acids, phenols, amides, and N heteroarenes, are described. Mechanistic
Direct monofluoromethylation of O-, S-, N-, and P-nucleophiles with PhSO(NTs)CH<sub>2</sub>F: the accelerating effect of α-fluorine substitution
作者:Xiao Shen、Min Zhou、Chuanfa Ni、Wei Zhang、Jinbo Hu
DOI:10.1039/c3sc51831k
日期:——
An efficient and direct monofluoromethylation of O-, S-, N-, and P-nucleophiles with PhSO(NTs)CH2F 1 has been developed. In contrast to the previously known detrimental effect of α-fluorine substitution on SN2 reactions, the current monofluoromethylation is accelerated by the α-fluorine substitution. Based on a mechanistic study, a new reactivity of sulfoximine (as a radical monofluoromethylation reagent) is disclosed.
PROCESS FOR PREPARING HETEROAROMATIC RING COMPOUND HAVING N-Rf GROUP
申请人:KOMATSU Yuzo
公开号:US20120116097A1
公开(公告)日:2012-05-10
There is provided a preparation process in which a N—H group of a heteroaromatic ring compound having a N—H group in its ring is converted directly to a N—Rf group at a high reaction efficiency without using a catalyst. The preparation process is a process for preparing a compound comprising a heteroaromatic ring structure having a N—Rf group (—Rf is a fluorine-containing organic group) in its ring and is characterized in that the heteroaromatic ring compound having a N—H group in its ring is allowed to react with fluoroalkene in the absence of an alkali metal.
Die Erfindung betrifft neue N-Sulfenylierte 2-Trifluormethyl-benzimidazole der allgemeinen Formel (I)
in welcher
X und Y unabhängig voneinander für Halogen stehen,
n für 0, 1, 2 oder 3 steht und
R¹ und R² gleich oder verschieden sind und für Wasserstoff, Halogen, jeweils gegebenenfalls durch Halogen substituiertes Alkyl, Alkoxy oder Alkylthio stehen oder gemeinsam für einen gegebenenfalls durch Halogen substituierten und gegebenenfalls durch Heteroatome unterbrochenen ankondensierten Ring stehen,
ein Verfahren zu ihrer Herstellung sowie ihre Verwendung als Herbizide und Mikrobizide.
本发明涉及通式(I)的新型 N-亚磺酰化 2-三氟甲基苯并咪唑,通式(I)中的 X 和 Y 各自代表卤素,n 代表 0、1、2 或 3,R¹ 和 R² 相同或不同,分别代表氢、卤素、烷基、烷氧基或烷基硫基,每种均可选择被卤素取代,或共同代表一个可选择被卤素取代且可选择被杂原子打断的熔合环,本发明还涉及其制备方法及其作为除草剂和杀微生物剂的用途。