Regio- and Stereoselective Ring Opening of Epoxides and Aziridines Using Zirconyl Chloride: An Efficient Approach for the Synthesis of β-Chlorohydrins and β-Chloroamines
Zirconyl chloride mediated regio- and stereoselective ring opening of epoxides and aziridines at room temperature affords the corresponding β-chlorohydrins and β-chloroamines, respectively in high yields.
A Versatile Metal-Free Intermolecular Aminochlorination of Alkenes
作者:Claudio Martínez、Kilian Muñiz
DOI:10.1002/adsc.201300880
日期:2014.1.13
New reaction conditions for the rapid and productive intermolecularaminochlorination reaction of alkenes using a combination of chloramine‐T and a Brønstedt acid are described. Upon simple protonation of chloramine‐T, conditions for a mild and selective aminochlorination are obtained. In addition, the reaction can proceed to form either of the two possible regioisomers, depending on whether a stoichiometric
Indium Trihalide Mediated Regioselective Ring Opening of Aziridines: A Facile Synthesis of 2-Haloamines
作者:J. S. Yadav、B. V. Subba Reddy、G. Mahesh Kumar
DOI:10.1055/s-2001-16775
日期:——
A variety of N-tosyl aziridines undergo ringopening with indium trihalides in acetonitrile at ambient temperature to afford the corresponding haloamines in excellent yields with high regioselectivity.
TTMPP: An efficient organocatalyst in the ring-opening of aziridines with silylated nucleophiles
作者:Satoru Matsukawa、Kumiko Tsukamoto
DOI:10.1039/b908322g
日期:——
The ring-opening of N-tosylaziridines with silylated nucleophiles catalyzed by tris(2,4,6-trimethoxyphenyl)phosphine (TTMPP) afforded the corresponding β-functionalized sulfonamides in excellent yield under mild reaction conditions.
PPh3/halogenating agent-mediated highly efficient ring opening of activated and non-activated aziridines
作者:Manoj Kumar、Sanjay K. Pandey、Shikha Gandhi、Vinod K. Singh
DOI:10.1016/j.tetlet.2008.11.009
日期:2009.1
We report here the use of PPh3/halogenating agents as highly efficient reagents for the ring opening of aziridines with halides. The method works effectively for both activated and non-activated aziridines, and furnishes the products in excellent yields within a short period of time.