Selective aliphatic fluorination by halogen exchange in mild conditions
摘要:
HF-Base media, in particular (HF)(10)-pyridine or (HF)(3)-triethylamine, allow aliphatic chlorine-fluorine exchanges on acid-sensitive molecules. Depending on the nature (pyridine or triethylamine), stoichiometry of the base and temperature, selective mono-, di-, or tri-chlorine-fluorine exchanges on trichloromethyl groups alpha to sulfur, oxygen and carbon atoms can be obtained. (C) 2005 Elsevier B.V. All rights reserved.
Petrow; Neimyschewa, Zhurnal Obshchei Khimii, 1959, vol. 29, p. 3401; engl. Ausg. S. 3362
作者:Petrow、Neimyschewa
DOI:——
日期:——
Zur Kenntnis des Trichlormethylsulfenylchlorids
作者:V. Prey、E. Gutschik
DOI:10.1007/bf00903019
日期:——
Catalytic addition of trihalogenomethanesulfenyl chlorides to olefinic compounds
作者:A. Haas、M. Lieb、Yuanfa Zhang
DOI:10.1016/s0022-1139(00)80889-1
日期:1985.11
Trifluoroacetic acid has been found to be an efficient catalyst for the addition of fluorochloromethanesulfenyl chlorides CFnCl3−nSCl (n = 1, 2, 3) to olefins such as cyclohexene, 1-hexene, allyl bromide and vinyl bromide. The reaction with cyclohexene led to trans adducts. The addition to asymmetrical olefins afforded a mixture of Markovnikov- and anti-Markovnikov oriented adducts. The factors influencing
已发现三氟乙酸是将氟氯甲烷亚磺酰氯CF n Cl 3-n SCl(n = 1,2,3)加至烯烃如环己烯,1-己烯,烯丙基溴和乙烯基溴的有效催化剂。与环己烯的反应产生反式加合物。向不对称烯烃的加成提供了马尔可夫尼可夫和反马尔可夫尼可夫取向的加合物的混合物。讨论了影响反应过程的因素。
Selective aliphatic fluorination by halogen exchange in mild conditions
作者:Laurent Saint-Jalmes
DOI:10.1016/j.jfluchem.2005.10.006
日期:2006.1
HF-Base media, in particular (HF)(10)-pyridine or (HF)(3)-triethylamine, allow aliphatic chlorine-fluorine exchanges on acid-sensitive molecules. Depending on the nature (pyridine or triethylamine), stoichiometry of the base and temperature, selective mono-, di-, or tri-chlorine-fluorine exchanges on trichloromethyl groups alpha to sulfur, oxygen and carbon atoms can be obtained. (C) 2005 Elsevier B.V. All rights reserved.