Crystal Structure and Spectroscopic Investigation of Bromofluoro‐ and Fluoroiodomethane
作者:Michael Feller、Karin Lux、Andreas Kornath
DOI:10.1002/ejic.201500759
日期:2015.11
The solid states of bromofluoromethane (BFM) and fluoroiodomethane (FIM) are characterized by X-ray diffraction analysis and by Raman spectroscopy. The single crystals were obtained by crystallization in situ at low temperature. BFM and FIM crystallize in the space group I2/a and Abm2, respectively. The Raman spectra of both compounds were recorded in different aggregation states and at different temperatures
溴氟甲烷 (BFM) 和氟碘甲烷 (FIM) 的固态通过 X 射线衍射分析和拉曼光谱进行表征。通过在低温下原位结晶获得单晶。BFM 和 FIM 分别在空间群 I2/a 和 Abm2 中结晶。在不同的聚集状态和不同的温度下记录了两种化合物的拉曼光谱。量子化学计算和 X 射线衍射数据被认为可以描述两种化合物在固态下的非共价相互作用。这些相互作用是在 σ-hole 概念的上下文中讨论的。
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
Bunte Salt CH<sub>2</sub>FSSO<sub>3</sub>Na: An Efficient and Odorless Reagent for Monofluoromethylthiolation
作者:Fanmin Liu、Lvqi Jiang、Huangyao Qiu、Wenbin Yi
DOI:10.1021/acs.orglett.8b02753
日期:2018.10.5
A practical and efficient monofluoromethylthiolation that employs the typical Bunte salt, sodium S-(fluoromethyl) sulfurothioate, as the sulfur source is described. This reagent reacts readily with a variety of aryl amines and aryl thiols. The high tolerance of functional groups demonstrates the potential of this reaction. In addition, this method is suitable for the late-stage monofluoromethylthiolation
Chemoselective Homologation–Deoxygenation Strategy Enabling the Direct Conversion of Carbonyls into (<i>n+1</i>)-Halomethyl-Alkanes
作者:Margherita Miele、Andrea Citarella、Thierry Langer、Ernst Urban、Martin Zehl、Wolfgang Holzer、Laura Ielo、Vittorio Pace
DOI:10.1021/acs.orglett.0c02831
日期:2020.10.2
The sequential installation of a carbenoid and a hydride into a carbonyl, furnishing halomethyl alkyl derivatives, is reported. Despite the employment of carbenoids as nucleophiles in reactions with carbon-centered electrophiles, sp3-type alkyl halides remain elusive materials for selective one-carbon homologations. Our tactic levers on using carbonyls as starting materials and enables uniformly high