The Synthesis of Medium-Sized Cyclic Lactams by the Intramolecular Friedel-Crafts Cyclization of Isocyanates. Formation of Novel Pyrazolobenzolactams
A series of 4-ω-phenylalkyl substituted-1H-pyrazol-5-amines has been synthesized from the corresponding α-acetylphenylalkanenitriles and methylhydrazine.They were converted into the corresponding 5-isocyanates and cyclized under Friedel-Crafts conditions
Butler, Donald E.,Alexander, Susan M.
p. 1173 - 1177
(2007/10/02)
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