Synthesis of 1,2,4-Triazolo[4,3-d][1,2,4
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M. El Messaoudi; A. Hasnaoui; M. El Mouhtadi; J.-P. Lavergne
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Article
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2010
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Wiley (John Wiley & Sons)
⚖ 330 KB
👁 1 views
## Abstract The reaction of N‐aryl‐C‐ethoxycarbonyl nitrilimines with [1,2,4]triazepin‐3,5‐dithione leads to title compounds. The 1,3‐dipolar cycloaddition is completely peri and regioselective. The preferred orientation of addition is predicted correctly by AM~1~ calculation.