Abstract
The sulfoximine-based tetrazoles have been synthesized via azido-Ugi four-component
reactions of sulfoximines, isocyanides, aldehydes, and TMS-azide in MeOH at 70 °C
in the presence of InCl3. Replacement of sulfoximines with sulfonimidamides (SIA) has delivered the corresponding
SIA-based tetrazole. Interestingly, SIA also acts as a surrogate amine to furnish
the corresponding aminotetrazole as a by-product.
Key words
sulfoximines - sulfonimidamides - Ugi reaction - tetrazoles - isocyanides