Azido derivatives of geminal bis(alkoxy-NNO-azoxy)compounds
摘要:
Mesylate of 2,2-bis(methoxy-NNO-azoxy)ethanol readily reacts with sodium azide without addition of bases affording 1-azido-2,2-bis(methoxy-NNO-azoxy)ethane. In reactions of bistriflates of 2,2-bis-(methoxy- and ethoxy-NNO-azoxy)propane-1,3-diols with sodium azide in DMSO 1,3-diazido-2,2-bis-(methoxy- and ethoxy-NNO-azoxy)propanes form in a high yield. These diazides react with phenylacetylene to give 2,2-bis(methoxy-NNO-azoxy)-1,3-bis(4-phenyl-1H-1,2,3-triazol-1-yl)propane and 2,2-bis-(ethoxy-NNOazoxy)-1,3-bis(4-phenyl-1H-1,2,3-triazol-1-yl)-propane. The molecules of the obtained azides are prone to association in CDCl3 by alkoxyazoxy groups.
2,2-Bis(methoxy- and ethoxy-NNO-azoxy)propane-1,3-diol sulfonates
摘要:
2,2-Bis(alkoxy-NNO-azoxy)propane-1,3-diols react with sulfonyl chlorides and trifluoromethanesulfonic anhydride in the presence of bases affording previously unknown methane-, trifluoromethane-, benzene and toluenesulfonates (sulfonic esters) of 2-bis(methoxy- and ethoxy-NNO-azoxy)propane-1,3-diols. The triflates are thermally less stable than mesylates, benzenesulfonates, and tosylates of the corresponding diols.