Tandem olefin metathesis–elimination reactions. A new route to doubly unsaturated carbonyl derivatives
作者:Bruce H. Lipshutz、Subir Ghorai、Žarko V. Bošković
DOI:10.1016/j.tet.2008.04.027
日期:2008.7
Cross-metathesis between an activated olefin and an ethereal derivative of homoallylic alcohols leads to products that are subject to facile elimination resulting in α,β,γ,δ-unsaturated esters, ketones, acids, and aldehydes in high yields.
INHIBITORS OF MITOCHONDRIAL STAT3 AND USES THEREOF IN MODULATION OF MAST CELL EXOCYTOSIS
申请人:Yissum Research Development Company of the Hebrew University of Jerusalem Ltd
公开号:US20160113900A1
公开(公告)日:2016-04-28
The invention provides composition of matter comprising at least one STAT3 inhibiting moiety or any vehicle, matrix, nano- or micro-particle comprising the same, associated with at least one mitochondrial targeting moiety. The invention further provides compositions comprising said mitochondrial-targeted STAT3 inhibitor, methods and uses thereof in inhibiting mast cell degranulation and in treating disorders induced by activation of MC.
Methods and compositions for preventing and treating electrophile-mediated toxicities
申请人:MONTEFIORE MEDICAL CENTER
公开号:US10104882B2
公开(公告)日:2018-10-23
Methods and compositions using 1,3-dicarbonyl compounds are disclosed for treating toxicity due to therapeutic agents and agents that causes oxidative cellular damage and for treating liver ischemia-reperfusion injury, as well as diseases and disorders that are improved through administration of N-acetylcysteine.
Process for the manufacture of alkali metal salt of sorbic acid or free Sorbic Acid by oxidation
申请人:Somaiya Organo Chemicals Limited
公开号:US20020072627A1
公开(公告)日:2002-06-13
A process for the manufacture of alkali metal salt of Sorbic acid or free Sorbic acid by oxidation of 2:4 hexadienal with an aqueous solution of Hydrogen Peroxide and adding oxides of transition metal such as Mn, Ni, Cu, Ag, Pt, or Pd. In a reactor maintaining the temperature in the range of 5 deg.-80 deg.C., preferable between 20 deg. to 40 deg. thus converting the metal salt to free Sorbic acid by acidification.
Molar proportions of 2:4 hexadienal and an aqueous alkali metal hydroxide are 1:2:1 and these are fed to reactor containing catalyst and continuously blowing the mixture.
Catalysts used in the process are oxides of transition metals or salts of Li, Na, or Ca.
The mixture in the reactor kept alkaline using calcium hydroxide or ammonium hydroxides. Potassium hydroxide or ammonium hydroxides.