Amidrazones  11 . Rearrangement of 1‐allyl‐substituted‐4,5‐dihydro‐1‐methyl‐1 H ‐pyrazolium bromides | Zendy

Smith Richard F. | Zendy; Dennis Lisa A. | Zendy; Ryan William J. | Zendy

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Amidrazones 11 . Rearrangement of 1‐allyl‐substituted‐4,5‐dihydro‐1‐methyl‐1 H ‐pyrazolium bromides

Author(s) -

Smith Richard F.,

Dennis Lisa A.,

Ryan William J.

Publication year - 1988

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.5570250212

Subject(s) - propenyl , chemistry , bromide , sodium ethoxide , medicinal chemistry , allyl bromide , organic chemistry , ethanol

1‐Methyl‐2‐(2‐propenyl)‐3‐pyrazolidinimine ( 5 ) was obtained by treatment of 3‐amino‐4,5‐dihydro‐1‐methyl‐ 1‐(2‐propenyl)‐1 H ‐pyrazolium bromide ( 4 ) with ethanolic sodium ethoxide. Similar treatment of the analogous 2‐(2‐butenyl) and 2‐(3‐phenyl‐2‐propenyl)‐substituted salts 12 and 15 gave 1‐methyl‐2‐(1‐methyl‐2‐propenyl)‐3‐ pyrazolidinimine ( 13 ) and 1‐methyl‐2‐(1‐phenyl‐1‐propenyl)‐3‐pyrazolidinimine ( 16 ) respectively.

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