Journal
ORGANIC LETTERS
Volume 17, Issue 6, Pages 1521-1524Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.5b00398
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Funding
- Ministry of Science and Technology (MOST), Taiwan
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I-2-TBHP-catalyzed oxidative cross coupling of N-sulfonyl hydrazones with isocyanides has been realized for the synthesis of 5-aminopyrazoles through formal [4 + 1] annulation via in situ azoalkene formation. Notable features are the metal/alkyne-free strategy, C-C and C-N bond formation, atom economy, catalytic I-2, broad functional group tolerance, good reaction yields, shorter time, and also applicability to one-pot methodology.
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