A general synthesis of isothiocyanates from dithiocarbamates using Claycop
摘要:
A Convenient and simple synthesis of alkyl, aryl and amino acid isothiocyanates is described by the decomposition of ammonium dithiocarbamates using Claycop in mild conditions. (C) 1997 Elsevier Science Ltd.
Quantitative Solid-State Reactions of Amines with Carbonyl Compounds and Isothiocyanates
作者:Gerd Kaupp、Jens Schmeyers、Juergen Boy
DOI:10.1016/s0040-4020(00)00511-1
日期:2000.9
solid anhydrides to give diamides (therefrom imides) or amidic carboxylic salts or imides, with solid imides to give diamides, with solid lactones or carbonates to give functionalized carbamic esters, with polycarbonates to give degradative aminolysis, and with solid isothiocyanates to give thioureas. Diamides give imides by solid-state thermolysis or acid catalysis. Various double, two-step, 3-cascade
ISOTHIOCYANATE PRODUCTION METHOD, COMPOSITION FOR TRANSPORTING AND STORING N-SUBSTITUTED O-SUBSTITUTED THIOCARBAMATE, AND ISOTHIOCYANATE COMPOSITION
申请人:ASAHI KASEI CHEMICALS CORPORATION
公开号:US20160016901A1
公开(公告)日:2016-01-21
The present invention relates to an isothiocyanate production method using an organic primary amine and thiourea as starting materials; to a composition for transporting and storing an N-substituted O-substituted thiocarbamate that includes an N-substituted O-substituted thiocarbamate and a hydroxy compound, the equivalent weight ratio of hydroxy groups of the hydroxy compound with respect to the carbamate groups of the N-substituted O-substituted thiocarbamate being in the range of 1 to 100; to a composition for transporting and storing a compound with a thioureido group that includes a compound with a thioureido group and a hydroxy compound, the equivalent weight ratio of hydroxy groups of the hydroxy compound with respect to the thioureido groups of the compound with a thioureido group being in the range of 1 to 100; and to an isothiocyanate composition containing an isothiocyanate and a compound with a specific functional group.
DENDRIMER CONJUGATES OF AGONISTS AND ANTAGONISTS OF THE GPCR SUPERFAMILY
申请人:Jacobson Kenneth A.
公开号:US20090012035A1
公开(公告)日:2009-01-08
Disclosed are conjugates comprising a dendrimer and a ligand, which is a functionalized congener of an agonist or antagonist of a receptor of the G-protein coupled receptor (GPCR) superfamily, for example, wherein the functionalized congener is an A
1
adenosine receptor agonist having a purine nucleoside moiety and a functional group at the N
6
position of the purine nucleoside moiety, wherein the functional group has the formula (I): N
6
H—Ar
1
—CH
2
—C(═O)NH—R
1
(I), wherein Ar
1
and R
1
as defined herein. Also disclosed are pharmaceutical compositions, methods of treating various diseases, and a diagnostic method employing such conjugates.
PROCESS FOR PRODUCING PENTAERYTHRITOL MERCAPTOCARBOXYLIC ACID ESTER, POLYMERIZABLE COMPOSITION, RESIN, OPTICAL MATERIAL, AND LENS
申请人:MITSUI CHEMICALS, INC.
公开号:US20180186733A1
公开(公告)日:2018-07-05
A process for producing a pentaerythritol mercaptocarboxylic acid ester of the present invention includes: a step of reacting pentaerythritol with a mercaptocarboxylic acid, in which an absorbance of a 5 wt % aqueous solution of the pentaerythritol at a wavelength of 270 nm, which is measured using a quartz cell having an optical path length of 50 mm, is 0.07 or less.
POLYTHIOL COMPOSITION, POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIALS, AND USE OF POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIALS
申请人:Mitsui Chemicals, Inc.
公开号:EP2824126A1
公开(公告)日:2015-01-14
A polythiol composition according to the present invention includes a polythiol compound (A) having three or more mercapto groups and a nitrogen-containing compound (B) in which one of a mercapto group of the polythiol compound (A) is replaced with a group represented by the following formula (a) and other one of a mercapto group of the polythiol compound (A) is replaced with a hydroxyl group, in which the peak area of the nitrogen-containing compound (B) is equal to or less than 3.0 with respect to the peak area of 100 of the polythiol compound (A) in a high performance liquid chromatography measurement.