58327-37-0Relevant articles and documents
Development of a catalytic platform for nucleophilic substitution: Cyclopropenone-catalyzed chlorodehydration of alcohols
Vanos, Christine M.,Lambert, Tristan H.
supporting information; experimental part, p. 12222 - 12226 (2012/02/02)
Cyclopropenone makes the switch: 2,3-Bis-(p-methoxyphenyl)cyclopropenone is a highly efficient catalyst for the chlorodehydration of 20 diverse alcohol substrates (see scheme; X=Cl). With oxalyl chloride as catalytic activator, this nucleophilic substitution proceeded through cyclopropenium-activated intermediates and resulted in complete stereochemical inversion in substrates with chiral centers.
ONE-POT SYNTHESIS OF α-CHLORONITRILES FROM ARYLCARBONYL COMPOUNDS
Kiyooka, Syun-ichi,Fujiyama, Ryoji,Kawaguchi, Katsuhiko
, p. 1979 - 1980 (2007/10/02)
α-Chloronitriles are prepared by the reaction of arylcarbonyl compounds and trimethylsilyl cyanide with a stoichiometric amount of titanium tetrachloride in good yields.
Some derivatives of 2,4 diamino 5 phenylthiazole (amiphenazole)
Adams,Nicholls,Williams
, p. 425 - 427 (2007/10/05)
To facilitate metabolic studies on the analeptic 2,4 diamino 5 phenylthiazole (Amiphenazole) attempts were made to synthesise 2,4 diamino 5 (p hydroxyphenyl) thiazole (unsuccessful) and 2,4 dihydroxy 5 (p hydroxyphenyl) thiazole (successful) as possible metabolites. The pharmacology of some synthetic intermediates revealed that 2,4 diamino 5 (p methoxyphenyl) thiazole was a more potent stimulant than Amiphenazole in morphine depressed respiration of rabbits whilst therapeutic indices were comparable. 2,4 Diamino 5 (p benzyloxyphenyl) thiazole depressed locomotor activity in mice. 2,4 Dihydroxy 5 (p hydroxyphenyl) thiazole did not affect morphine induced analgesia in mice.