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
<scp>Monofluoromethyl‐Substituted</scp>
Sulfonium Ylides: Preparation,
<scp>Structure‐Reactivity</scp>
Study and Substrate Scope
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作者:Xin Hong、Yafei Liu、Long Lu、Qilong Shen
DOI:10.1002/cjoc.202000206
日期:2020.11
Structure‐reactivity study of a family of electrophilic monofluoromethylating reagents based on sulfonium ylide skeleton with different steric hindrance and electron‐withdrawing properties was described. These studies led us to discover two highly reactive reagents 3 with a cyclic malonate backbone and 6 with an electron‐poor 1,1,1,5,5,5‐hexafluoropentane‐2,4‐dione backbone. The high reactivity of reagent
Pyrimidine compounds as delta opioid receptor modulators
申请人:Janssen Pharmaceutica, NV
公开号:US08685990B2
公开(公告)日:2014-04-01
Disclosed are compounds, compositions and methods for treating various diseases, syndromes, conditions and disorders, including pain. Such compounds are represented by Formula I as follows:
wherein R1, R2, R3, and L, A, and Ra are defined herein.
C−H Fluoromethoxylation of Arenes by Photoredox Catalysis
作者:Giulia Bertoli、Ángel Manu Martínez、Jonas F. Goebel、Debora Belmonte、Nardana Sivendran、Lukas J. Gooßen
DOI:10.1002/anie.202215920
日期:2023.1.26
A new class of [N−OCH2F] redox-active reagents were synthetized via electrodecarboxylative C(sp3)−O coupling of N-hydroxybenzotriazoles with fluoroacetic acid and subsequent alkylation. By irradiation with blue LEDs in the presence of a photosensitizer, these bench stable reagents allow the synthesis of monofluoromethyl aryl ethers via functionalization of C−H bonds.