A novel strategy to generate functionalized 1-azatriene intermediates for 6π electrocyclizations was developed by using readily accessible dienyne-imides and various terminal olefins under Pd catalysis. Taking advantage of the sequential cooperation between preloaded and incorporated functional handles at 1,3-dien-5-yne skeletons, this method not only enables the selective generation of putative 1-azatrienes but significantly accelerates their thermal 6π-electrocyclic ring-closure processes to a series of highly substituted furo[2,3-b]dihydropyridine derivatives in good yields.

A simple combination of CuI/LiOtBu/DMF enables the tandem Huisgen [3 + 2] cycloaddition/amidation reaction of terminal alkynes and sulfonyl azides to 5-sulfamide-1-(N-sulfonyl)-1,2,3-triazoles I, which can undergo an alkylation/desulfonation sequence to deliver highly substituted aminotriazoles II by one-pot or one-pot, two-step procedures.

A novel strategy to generate functionalized 1‐azatriene intermediates for 6π electrocyclizations was developed by using readily accessible dienyne‐imides and various terminal olefins under PdII catalysis. Taking advantage of the sequential cooperation between preloaded and incorporated functional handles at 1,3‐dien‐5‐yne skeletons, this method not only enables the selective generation of putative 1‐azatrienes but significantly accelerates their thermal 6π‐electrocyclic ring‐closure processes to a series of highly substituted furo[2,3‐b]dihydropyridine derivatives in good yields.