Direct and Chemoselective Electrophilic Monofluoromethylation of Heteroatoms (<i>O</i>-, <i>S-</i>, <i>N</i>-, <i>P</i>-, <i>Se</i>-) with Fluoroiodomethane
作者:Raffaele Senatore、Monika Malik、Markus Spreitzer、Wolfgang Holzer、Vittorio Pace
DOI:10.1021/acs.orglett.9b04654
日期:2020.2.21
The commercially available fluoroiodomethane represents a valuable and effective electrophilic source for transferring the CH2F unit to a series of heteroatom-centered nucleophiles under mild basic conditions. The excellent manipulability offered by its liquid physical state (bp 53.4 °C) enables practical and straightforward one-step nucleophilic substitutions to retain the chiral information embodied
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.
Silver-Catalyzed Decarboxylative Fluorination of Aliphatic Carboxylic Acids in Aqueous Solution
作者:Feng Yin、Zhentao Wang、Zhaodong Li、Chaozhong Li
DOI:10.1021/ja3048255
日期:2012.6.27
industries, general and site-specific C(sp(3))-F bond formations are still a challenging task. We report here that with the catalysis of AgNO(3), various aliphaticcarboxylicacids undergo efficient decarboxylative fluorination with SELECTFLUOR(®) reagent in aqueous solution, leading to the synthesis of the corresponding alkyl fluorides in satisfactory yields under mild conditions. This radical fluorination
Oxidative rearrangement of benzyl alcohols with difluoro(p-trifluoromethylphenyl)-λ3-bromane (5 × 10−2 M) in chloroform at room temperature afforded aryl fluoromethyl ethers selectively in good yields, probably via 1,2-shift of aryl groups from benzylic carbon to oxygen atoms.
Lonidamine analogues and their use in male contraception and cancer treatment
申请人:Georg I. Gunda
公开号:US20060047126A1
公开(公告)日:2006-03-02
Novel compounds useful for inhibiting spermatogenesis and cancer treatment, and in particular as inhibitors of heat shock proteins and/or elongation factor 1 alpha.