Methods for Production of Optically Active Fluoropyrrolidine Derivatives
申请人:Umemoto Teruo
公开号:US20100174096A1
公开(公告)日:2010-07-08
Useful industrial methods for producing optically active fluoropyrrolidine derivatives as useful fluorinated intermediates are disclosed.
揭示了用于生产光学活性氟吡咯烷衍生物的有用工业方法,作为有用的氟化中间体。
[EN] METHODS FOR PREPARING FLUOROALKYL ARYLSULFINYL COMPOUNDS AND FLUORINATED COMPOUNDS THERETO<br/>[FR] PROCÉDÉS DE PRÉPARATION DE COMPOSÉS FLUOROALKYLE ARYLSULFINYLÉS ET COMPOSÉS FLUORÉS APPARENTÉS
申请人:IM & T RES INC
公开号:WO2010022001A1
公开(公告)日:2010-02-25
Novel preparative methods for fluoroalkyl arylsulfinyl compounds are disclosed. Fluorinated compounds as useful fluorinated compounds, intermediates, or builing blocks are disclosed. Useful applications of the fluoroalkyl arylsulfinyl compounds are shown.
Iodine-catalyzed, highly atom-economic synthesis of 9-sulfenylphenanthrenes and polycyclic heteroaromatics in water
作者:Nilanjana Mukherjee、Tanmay Chatterjee
DOI:10.1039/d1gc03305k
日期:——
A highly atom-economical and green synthetic method is developed for the oxidative thiolative annulation of 2-alkynyl biaryls with disulfides to synthesize a wide variety of 9-sulfenylphenanthrenes and polycyclic heteroaromatics in water. The transformation requires only a couple of inexpensive reagents, i.e., iodine as a catalyst and hydrogen peroxide (H2O2) as a green oxidant, to furnish the desired
Iodine-promoted direct thiolation (selenylation) of imidazole with disulfides (diselenide): A convenient and metal-free protocol for the synthesis of 2-arylthio(seleno)imidazole
作者:Rongnan Yi、Sen Liu、Hongxia Gao、Zhiwu Liang、Xinhua Xu、Ningbo Li
DOI:10.1016/j.tet.2020.130951
日期:2020.2
A convenient and metal-free protocol for the synthesis of 2-arylthio(seleno)imidazoles from imidazoles and disulfides (diselenides) was developed through the direct thiolation (selenylation) of imidazoles promoted by 0.5 equiv. of iodine. This process is scalable and tolerates a wide spectrum of disulfides (diselenides) to deliver products in high yields. Compared with previous methods, this protocol
Meyer–Schuster-type rearrangement for the synthesis of α-selanyl-α,β-unsaturated thioesters
作者:Lucas L. Baldassari、Anderson C. Mantovani、Micaela Jardim、Boris Maryasin、Diogo S. Lüdtke
DOI:10.1039/d0cc07019j
日期:——
A new approach to prepare α-selanyl-α,β-unsaturated thioesters from propargylthioalkynes and an electrophilic selenium species is reported. Pivotal is the intermediacy of a sulfur-stabilized vinyl cation, which is captured intramolecularly and ultimately enables 37 examples of the target compounds to be prepared in good yields. Computational studies shed light on the nature of intermediates in this