cas 32315-10-9, Triphosgene | Articles data

Articles about 32315-10-9Total 7 be found

PROCESS FOR SYNTHESIS OF FIPRONIL
A process for preparation of a trifluoromethylsulfinyl pyrazole compound of formula (I) from a compound of formula (III) is provided, wherein R, R1 and R2 represent a group containing halogen respectively and R3 represents a perhaloalkyl.
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Page/Page column 22-23

(2011/10/03)

Synthesis of new fluorine substituted hydrazinecarboxamides and hydrazine carbothioamides having antitubercular and fungicidal activity
3-(Trifluoromethyl)phenylhydrazine 3 on condensation with substituted phenylisocyanates 2a-f and phenylisothiocyanates 2g-1 gives N,2-diphenylhydrazinecarboxamides 4a-f and N,2-diphenylhydrazine carbothioamides 4g-1 which have been found to show antitubercular and antifungal activity.
Madhukar Nalavde,Joshi
p. 634 - 637
(2007/10/03)

Carbamazepine derivatives
The present invention provides a novel carbamazepine hydrazide compound suitable for covalent attachment to a polymer particle reagent, having the general formula STR1 The present invention also provides a novel carbamazepine acid compound suitable for attachment to proteins for the production of carbamazepine immunogens. The carbamazepine antigen of the present invention has the following general structure: STR2 where X is C=O, CH2 or SO2 ; Y is C=O, CH2, SO2 ; R is an alkyl and P is a protein or a hapten.
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(2008/06/13)

A convenient synthesis of chiral oxazolidin-2-ones and thiazolidin-2-ones and an improved preparation of triphosgene
Oxazolidin-2-ones and thiazolidin-2-ones are conveniently prepared by condensation of L-serine, L-threonine and L-cysteine, respectively with triphosgene. The corresponding methyl esters may be subsequently obtained by quenching the reaction mixture with methanol, without prior need for the isolation of the free acids. An improved procedure for preparation of triphosgene using an internal cooling system is described.
Falb,Nudelman,Hassner
p. 2839 - 2844
(2007/10/02)

Physostigmine derivatives.
Physostigmine derivatives are described of the general formula: in which R is a linear or branched alkyl with three to nine C atoms, or benzyl, and their slats with pharmaceutically acceptable acids, which are particularly useful for the preparation of pharmaceutical compositions having a acetylcholinesterase inhibiting function
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(2008/06/13)

Nucleophilic Substitutions at Carbonic Acid Derivatives. XIX. Alcoholysis and Hydrolysis of Bis(trichloromethyl)carbonate
The rate constants of hydrolysis and alcoholysis of bis(trichlormethyl)carbonate in dioxane have been determinated conductometrically.The effects of the water and alcohol concentrations, the temperature and deuterium have been studied.By the hydrolysis and alcoholysis of bis(trichlormethyl)carbonate the nucleophilic attack of water and alcohol is the rate-determining step, followed by a fast elimination of unstable trichloromethanol.
Cotarca, Livius,Bacaloglu, Radu,Marcu, Nicolae,Tarnaveanu, Alexandru
p. 881 - 886
(2007/10/02)