化学性质:白色结晶性粉末,熔点为270℃时会开始分解。
用途:主要用作医药中间体。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-硫氧代-1,2-二氢吡啶-3-羧酸甲酯 | methyl 2-mercaptonicotinate | 74470-32-9 | C7H7NO2S | 169.204 |
—— | 3-hydroxymethylpyridine-2-thiol | 131116-62-6 | C6H7NOS | 141.194 |
烟酸 | nicotinic acid | 59-67-6 | C6H5NO2 | 123.111 |
—— | 1-methyl-2-thioxo-1,2-dihydro-pyridine-3-carboxylic acid methyl ester | 86051-22-1 | C8H9NO2S | 183.231 |
—— | 1,2-dihydro-2-thioxo-3-pyridinecarbonyl chloride | 97936-36-2 | C6H4ClNOS | 173.623 |
—— | 1,2-dihydro-2-thioxo-3-pyridinecarboxamide | 50596-67-3 | C6H6N2OS | 154.192 |
The development of new methodologies for an efficient introduction of CF3 groups into complex molecules constitutes one of the most challenging tasks of modern organic chemistry. Recently, we reported the access to a new class of electrophilic CF3-transfer reagents based on hypervalent iodine. The versatile application of these reagents to C-centred nucleophiles, such as ?-keto esters, silyl enol ethers and ?-nitro esters, as well as to thiols and primary and secondary phosphines is described. Experiments with phenols afforded corresponding trifluomethylethers in very low yields.