1, 3‐dipolar cycloaddition of diazomethane to azolopyridazines. The synthesis of 8‐methyl‐8 H ‐ and 9‐methyl‐9 H ‐pyrazolo[3, 4‐ d ]‐s‐triazolo[4, 3‐ b ]pyridazine and 1‐methyl‐1 H ‐ and 2‐methyl‐2 H ‐imidazo[1, 2‐ b ]pyrazolo[3, 4‐ b ]pyridazine derivatives | Zendy

Merslavič Marjo | Zendy; Petrič Andrej | Zendy; Stanovnik Branko | Zendy; Tišler Miha | Zendy

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1, 3‐dipolar cycloaddition of diazomethane to azolopyridazines. The synthesis of 8‐methyl‐8 H ‐ and 9‐methyl‐9 H ‐pyrazolo[3, 4‐ d ]‐s‐triazolo[4, 3‐ b ]pyridazine and 1‐methyl‐1 H ‐ and 2‐methyl‐2 H ‐imidazo[1, 2‐ b ]pyrazolo[3, 4‐ b ]pyridazine derivatives

Author(s) -

Merslavič Marjo,

Petrič Andrej,

Stanovnik Branko,

Tišler Miha

Publication year - 1989

Publication title -

journal of heterocyclic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.321

H-Index - 59

eISSN - 1943-5193

pISSN - 0022-152X

DOI - 10.1002/jhet.5570260311

Subject(s) - diazomethane , chemistry , cycloaddition , medicinal chemistry , methyl group , 1,3 dipolar cycloaddition , stereochemistry , organic chemistry , group (periodic table) , catalysis

The transformations of 7‐methyl‐7 H ‐ and 8‐methyl‐8 H ‐pyrazolo[4, 3‐ d ]tetrazolo[1, 5‐ b ]pyridazines 1, 2, 9 and 10 into 8‐methyl‐8 H ‐ and 9‐methyl‐9 H ‐pyrazolo[3, 4‐ H ]‐ s ‐triazolo[4, 3‐ b ]pyridazines 7 and 8 , and 1‐methyl‐1 H ‐and 2‐methyl‐2 H ‐imidazo[1, 2‐ b ]pyrazolo[3, 4‐ d ]pyridazines 13 and 14 are described.

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