Tumor inhibitory triazenes. 3. Dealkylation within an homologous series and its relation to antitumor activity
作者:Derry E. V. Wilman、Peter J. Cox、Phyllis M. Goddard、Leigh I. Hart、Kanti Merai、David R. Newell
DOI:10.1021/jm00373a011
日期:1984.7
The in vivo antitumor activity and in vitro metabolic dealkylation have been measured for an homologous series of 3-alkyl-1-(4-carbamoylphenyl)-3-methyltriazenes and have been compared with their partition coefficients. This investigation has shown that the extent of oxidative metabolism in vitro and the antitumor activity in vivo of these compounds are dependent upon hydrophobicity. These findings provide confirmation for the relationship between metabolism and antitumor activity for aryldialkyltriazenes.
Catalytic conversion of aryl triazenes into aryl sulfonamides using sulfur dioxide as the sulfonyl source
作者:Wanfang Li、Matthias Beller、Xiao-Feng Wu
DOI:10.1039/c4cc03481c
日期:——
Gaseous sulfur dioxide was incorporated into triazenes to form various sulfonamides, catalyzed by boron trifluoride and copper chloride.
气态二氧化硫在三氮烯中被催化剂三氟化硼和氯化铜催化形成各种磺胺类化合物。
N<sub>2</sub> Extrusion and CO Insertion: A Novel Palladium-Catalyzed Carbonylative Transformation of Aryltriazenes
作者:Wanfang Li、Xiao-Feng Wu
DOI:10.1021/acs.orglett.5b00603
日期:2015.4.17
A novel procedure for the replacement of N-2 with CO of aryltriazenes has been developed. Aryltriazenes were converted to the corresponding arylamides catalyzed by 1 mol % of PdCl2/P(o-Tol)(3) under CO pressure. In this process, aryldiazonium salts were generated in the presence of 40 mol % of MeSO3H. Nitrogen was released from the substrates and CO formally inserted. Aryl bromides, iodides, alkynes, and free hydroxyl groups can be tolerated in this transformation.