在这项工作中,开发了一种合成方案,以获得一系列带有二芳基硼部分的二芳基硼络合物,该二芳基硼部分与衍生自5-氯-8-羟基-7-碘喹啉、喹啉-2,4-二羧酸的各种二齿N,O-配体螯合或2-(2-羟基-5-甲基苯基)苯并三唑。通过 NMR、IR、CV、UV-vis 和单晶 X 射线衍射分析对所得配合物进行了表征。实验数据得到了理论计算的支持。所获得的配合物作为单线态氧敏化剂用于2-呋喃甲酸的氧化、苄胺的氧化偶联和硫化物的氧化进行测试。在所研究的化合物中,带有5-氯-8-氧基-7-碘喹啉配体的二芳基硼衍生物被选为最经济的单线态氧敏化剂。然而,带有8-羟基喹啉配体的二苯基硼配合物对于将各种苯甲胺选择性氧化为其各自的N-亚苄基苯甲胺来说是最有效的。
alkylating antitumor agents. In order to study the interaction of O6-benzylguanine derivatives with AGT and to obtain greater AGT depletion, we synthesized the following O6-arylmethylguanine derivatives and related compounds: O6-(4-, 3- and 2-fluorobenzyl)guanines (2, 3, 4), O6-(4-, 3- and 2-trifluoromethylbenzyl)guanines (5, 6, 7), O6-(4-, 3- and 2-pyridylmethyl)guanines (8, 9, 10), O6-(2- and 1-naphthylmethyl)guanines
Alkyl Sulfides as Promising Sulfur Sources: Metal-Free Synthesis of Aryl Alkyl Sulfides and Dialkyl Sulfides by Transalkylation of Simple Sulfides with Alkyl Halides
A site‐selective metal‐free dealkylative approach to synthesize aryl alkyl and symmetrical dialkyl sulfides has been developed. This procedure is convenient and has wide functional group tolerance giving rise to sulfides carrying various alkyl chains from simple alkyl sulfides and alkyl halides in good to excellent yields. This transalkylation proceeds by an ionic mechanism via sulfonium intermediates