It was found that potassium fluoride-poly(hydrogen fluoride) salts are useful fluorine sources for halofluorination of alkenes. The reaction proceeded with these salts and N-halosuccinimides or 1,3-dibromo-5,5-dimethylhydantoin in a regio- and stereoselective manner.
A novel method for preparation of vicinal fluoro-iodo compounds using elemental fluorine
作者:Shlomo Rozen、Michael Brand
DOI:10.1016/s0040-4039(00)74546-1
日期:1980.1
Elemental fluorine reacts with iodine at −75° and the resulting IF is reacted, without any isolation or purification, with olefins thus producing fluoro-iodo compounds in an excellent regio- and stereospecific mode.
One-Pot Formal Carboradiofluorination of Alkenes: A Toolkit for Positron Emission Tomography Imaging Probe Development
作者:Mónica Rivas、Sashi Debnath、Sachin Giri、Yusuf M. Noffel、Xiankai Sun、Vladimir Gevorgyan
DOI:10.1021/jacs.3c04548
日期:2023.9.6
accessible alkenes as both prosthetic group precursors and coupling partners. The methodology features rapid sequential Markovnikov-selective iodofluorination and photoinduced Pd(0/I/II)-catalyzed alkyl Heck reaction as a mild and robust fluorine-18 (18F) radiochemical approach for positron emission tomography (PET) imaging probe development. A new class of prosthetic groups for PET imaging probe synthesis
我们报告了第一个一锅正式烯烃碳硼氟化反应,采用易于获得的烯烃作为辅基前体和偶联伙伴。该方法的特点是快速连续马尔可夫尼科夫选择性碘氟化和光诱导 Pd(0/I/II) 催化烷基 Heck 反应,作为一种温和且稳定的氟 18 ( 18 F) 放射化学方法,用于正电子发射断层扫描 (PET) 成像探针的开发。用于 PET 成像探针合成的一类新型辅基以碘氟化中间体的形式分离出来,产率中等至优异。进行一锅正式烯基氟化反应,生成了 30 多种多种生物活性分子的类似物。通过富电子烯烃的直接碳(放射性)氟化,说明了 Pd(0/I/II) 歧管在 PET 探针开发中的进一步应用。这些方法已成功转化为放射性标记广泛的医学相关小分子,放射化学转化总体良好。该协议经过进一步优化,以适应无载体添加的条件,并为未来(前)临床翻译提供类似的效率。此外,辅基的放射合成在放射化学模块中实现自动化,以促进其在多步放射化学反应中的实际应用。
METHOD FOR PRODUCING FLUORINATED IODINATED ORGANIC COMPOUND
申请人:DAIKIN INDUSTRIES, LTD.
公开号:EP3967673A1
公开(公告)日:2022-03-16
The present disclosure addresses the problem of providing a novel method for producing a fluorinated iodinated organic compound.
The problem can be solved by a method for producing a fluorinated iodinated organic compound, comprising reacting a compound represented by formula (1):
wherein R1 and R2 are each independently a hydrogen atom, a halogen atom, or an organic group, or R1 and R2 optionally form a ring together with the two adjacent carbon atoms; and n is 1 or 2, with a fluorine source, an iodine source, and an oxidizing agent or radical generator to add fluorine and iodine to the double bond or triple bond.
Iodofluorination of alkenes and alkynes promoted by iodine and 4-iodotoluene difluoride
作者:Pellegrino Conte、Barbara Panunzi、Marco Tingoli
DOI:10.1016/j.tetlet.2005.11.029
日期:2006.1
It was found that a mixture of molecular iodine and 4-iodotoluene difluoride are useful to generate in situ the couple 'IF' that was able to add in a Markovnikov fashion and with prevalent anti-stereoselectivity to various alkenes and alkynes. (c) 2005 Elsevier Ltd. All rights reserved.