Oxalic Acid-catalyzed Reaction of Alcohols with NaSCN: The Effects of Additives NaI and I<sub>2</sub>
作者:Hideyoshi Miyake、Yuichi Nakao、Mitsuru Sasaki
DOI:10.1246/cl.2006.1262
日期:2006.11
Oxalic acid-mediated conversion of alcohols to thiocyante and/or isothiocyanate is described. Aliphatic tertiary alcohols give isothiocyanate by the reaction with NaSCN in the presence of I2, whereas they give thiocyanate without it.
Conversion of primary alcohols to the corresponding thiocyanates was effected by constant-current electrolysis of thiocyanate ion in dichloromethane containing an alcohol, triphenylphosphite, and 2, 6-lutidinium perchlorate or tetrafluoroborate. The electrolysis was performed at ambient temperature in a one-compartment cell using a graphite plate and a platinum plate as the anode and the cathode, respectively. 2, 6-Lutidinium cation effectively extracted thiocyanate ion into the organic phase from sodium thiocyanate suspended in the reaction mixture.
Reaction of Thiocarbonyl Fluoride Generated from Difluorocarbene with Amines
作者:Jiao Yu、Jin-Hong Lin、Ji-Chang Xiao
DOI:10.1002/anie.201710186
日期:2017.12.22
The reaction of thiocarbonyl fluoride, generated from difluorocarbene, with various amines under mild conditions is described. Secondary amines, primary amines, and o‐phenylenediamines are converted to thiocarbamoyl fluorides, isothiocyanates, and difluoromethylthiolated heterocycles, respectively. Thiocarbamoyl fluorides were further transformed into trifluoromethylated amines by using a one‐pot process
作者:Richard C. Cambie、David S. Larsen、Peter S. Rutledge、Paul D. Woodgate
DOI:10.1039/p19810000058
日期:——
‘thiocyanogen bromide’ prepared from equimolar amounts of bromine and thallium(I) thiocyanate in wet chloroform, gives moderate to high yields of vic-bromothiocyanates. The addition proceeds by an ionic mechanism involving nucleophilic attack of a bromide ion on an S-cyanothiiranium cation. Unlike vic-iodothiocyanates, the vic-bromothiocyanates are not readily isomerized to the corresponding vic-halogenoisothiocyanates
The invention relates to bicyclic compounds of formulas I and Ia, and salts thereof. In some embodiments, the invention relates to inhibitors or modulators of Pim-1 and/or Pim-2, and/or Pim-3 protein kinase activity or enzyme function. In still further embodiments, the invention relates to pharmaceutical compositions comprising compounds disclosed herein, and their use in the prevention and treatment of Pim kinase related conditions and diseases, preferably cancer.