使用微波辐照从α-甲苯磺酰氧基固态合成2-芳基苯并[ b ]呋喃,1,3-噻唑和3-芳基-5,6-二氢咪唑并[2,1- b ] [1,3]噻唑
摘要:
2-芳酰基苯并的迅速无溶剂合成[ b ]呋喃,1,3-噻唑和3-芳基-5,6-二氢咪唑并[2,1- b ] [1,3]是从容易获得α-tosyloxyketones描述噻唑类和通过暴露于微波而加速的过程中的矿物氧化物。在固态氟化钾掺杂的氧化铝(KF–Al 2 O 3)存在下,从水杨醛和α-甲苯磺酰氧基酮很容易获得2-芳基苯并[ b ]呋喃,而蒙脱土K-10粘土从硫酰胺和α提供了1,3-噻唑。 -甲苯磺酰氧基酮。同样,亚乙基硫脲和α-甲苯磺酰氧基酮可提供桥头氮杂环,3-芳基-5,6-二氢咪唑并[2,1- b] [1,3]噻唑类,其收率很高,在传统的加热条件下不易获得。
METHODS OF INHIBITING PRO MATRIX METALLOPROTEINASE ACTIVATION
申请人:JACKSON Paul Francis
公开号:US20120302573A1
公开(公告)日:2012-11-29
This invention relates to methods for preventing, treating or ameliorating an MMP9 and/or MMP13 mediated syndrome, disorder or disease comprising administering to a subject in need thereof an effective amount of a compound listed in the examples section of this specification, or a form, composition or medicament thereof. Disorders treated and/or prevented include rheumatoid arthritis.
BISTHIAZOLE INHIBITORS OF PRO-MATRIX METALLOPROTEINASE ACTIVATION
申请人:JACKSON Paul Francis
公开号:US20120129842A1
公开(公告)日:2012-05-24
This invention relates to bisthiazole I and its therapeutic and prophylactic uses, wherein the variables A, R
5
, R
6
, and R
7
are defined in the specification. Disorders treated and/or prevented include rheumatoid arthritis.
Various α-Oxygen Functionalizations of β-Dicarbonyl Compounds Mediated by the Hypervalent Iodine(III) Reagent<i>p</i>-Iodotoluene Difluoride with Different Oxygen-Containing Nucleophiles
作者:Jun Yu、Jun Tian、Chi Zhang
DOI:10.1002/adsc.200900737
日期:2010.2.15
for the effective introduction of variousoxygen-containing functionalities including tosyloxy, mesyloxy, acetoxy, phosphoryloxy, methoxy, ethoxy and isopropoxy at the α-position of β-dicarbonyl compounds. These transformations can be readily realized by the use of the combined reagent of p-iodotoluene difluoride and variousoxygen-containing nucleophilic compounds such as p-toluenesulfonic acid, methanesulfonic
p -Iodotoluene二氟乙烯(p -Tol-IF 2)已被发现是一种一般用于有效地引入各种含氧官能团包括甲苯磺酰氧基,甲磺酰氧基,乙酰氧基,磷酰甲氧基,乙氧基和异丙氧基在α位的试剂β-二羰基化合物。通过使用对-碘甲苯二氟化物和各种含氧亲核化合物如对甲苯磺酸,甲磺酸,乙酸,磷酸二苯酯,甲醇,乙醇和丙-2-醇的组合试剂,可以轻松实现这些转化。分别在温和的条件下。并且,原位生成的高价碘(III)物种通过在这种转化中,对-碘甲苯二氟化物与相应的含氧亲核试剂之间的配体交换被认为是真正的氧化剂。
Solvent-Free Reactions with Hypervalent Iodine Reagents
作者:Mekhman S. Yusubov、Thomas Wirth
DOI:10.1021/ol047363e
日期:2005.2.1
[reaction: see text] We describe solvent-free reactions for the synthesis of hypervalent iodinereagents and their use in solid-state reactions. Improved yields and higher purities of the products are observed.
Ultrasound promoted hypervalent iodine reactions: (α-tosyloxylation of ketones with [hydroxy(tosyloxy)iodo]benzene
作者:Atilla Tuncay、John A. Dustman、George Fisher、Crystal I. Tuncay、Kenneth S. Suslick
DOI:10.1016/0040-4039(93)88006-5
日期:1992.12
the rates of α-tosyloxylation of ketones with [hydroxy(tosyloxy)iodo] benzene and thus provides a direct, quick, and mild method of tosyloxylation of ketones without the generation of time-consuming intermediates such as trimethylsilyl enol ether derivatives and α-hydroxy ketones. The present method also provides convenient access to the tosylates of alicyclic ketones such as cyclopentanone and cycloheptanone