Diphosphorus tetraiodine (P2I4) a valuable reagent for regioselective synthesis of iodoalkanes from alcohols
作者:M. Lauwers、B. Regnier、M. Van Eenoo、J.N. Denis、A. Krief
DOI:10.1016/s0040-4039(01)86222-5
日期:1979.1
Primary, secondary and tertiary alcohols are transformed regioselectively and in high yield of alkyliodides by P2I4 in CS2 and at 20°C.
P 2 I 4在CS 2中和20°C时,伯,仲和叔醇区域选择性地转化,并以高收率的烷基碘化物转化。
[EN] ETHYNE DERIVATIVES, PHARMACEUTICAL COMPOSITIONS AND USES THEREOF<br/>[FR] DÉRIVÉS D'ÉTHYNE, COMPOSITIONS PHARMACEUTIQUES ET LEURS UTILISATIONS
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2012032014A1
公开(公告)日:2012-03-15
invention relates to new compounds of the formula I to their use as medicaments, to methods for their therapeutic use and to pharmaceutical compositions containing them.
New compounds, pharmaceutical compositions and uses thereof
申请人:ROTH Gerald Juergen
公开号:US20120214782A1
公开(公告)日:2012-08-23
The invention relates to new compounds of the formula I
to their use as medicaments, to methods for their therapeutic use and to pharmaceutical compositions containing them.
Using the Thiyl Radical for Aliphatic Hydrogen‐Atom Transfer: Thiolation of Unactivated C−H Bonds
作者:Liubov I. Panferova、Mikhail O. Zubkov、Vladimir A. Kokorekin、Vitalij V. Levin、Alexander D. Dilman
DOI:10.1002/anie.202011400
日期:2021.2.8
A metal‐ and catalyst‐free thiyl‐radical‐mediated activation of alkanes is described. Tetrafluoropyridinyl disulfide is used to perform thiolation of the C−H bonds under irradiation with 400 nm light‐emitting diodes. The key C−H activation step is believed to proceed via hydrogen‐atom abstraction effected by the fluorinated thiylradical. Secondary, tertiary, and heteroatom‐substituted C−H bonds can
Iodine-catalyzed oxidative functionalization of purines with (thio)ethers or methylarenes for the synthesis of purin-8-one analogues
作者:Juanping Zhuge、Ziyang Jiang、Wei Jiang、Gary Histand、Dongen Lin
DOI:10.1039/d1ob00118c
日期:——
An efficient oxidative functionalization of purine-like substrates with (thio)ethers or methylarenes under mild conditions is described. Using I2 as the catalyst, and TBHP as the oxidant, this protocol provides a valuable synthetic tool for the assembly of a wide range of 9-alkyl(benzyl)purin-8-one derivatives with high atom- and step-economy and exceptional functional group tolerance.
描述了在温和条件下用(硫)醚或甲基芳烃对嘌呤样底物进行有效的氧化功能化。该协议使用 I 2作为催化剂,TBHP 作为氧化剂,为组装各种具有高原子经济性和阶梯经济性的 9-烷基(苄基)purin-8-one 衍生物提供了一种有价值的合成工具。官能团耐受性。