Diamination of Domino Aryne Precursor with Sulfonamides
摘要:
The reaction of a domino aryne precursor with sulfonamides efficiently afforded both 1,3-diaminobenzenes and trisubstituted 1,3-diaminobenzenes by simply varying the reaction conditions. Mechanistic study supports the sequential formation of two transient aryne intermediates involved in-the reaction.
of trifluoromethanesulfonyl azide in solvents composed of 1:1 mixtures of benzene and substituted benzenes gives trifluoromethanesulfonanilide and substituted trifluoromethanesulfonanilides. The isomer ratios, the total rate ratios, and the partial rate factors for the sulfonamidation have been determined. By the intramolecular and intermolecular selectivities, the reaction mechanism involving trifluoromethanesulfonyl