- Synthesis of 1H-indazole: A combination of experimental and theoretical studies
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A new practical synthesis of 1H-indazole is presented. A previous mechanism for the cyclization step is proved to be nonfeasible and a hydrogen bond propelled mechanism is proposed. The new mechanism is suitable for similar cyclization, and a new reaction is predicted. Springer Science+Business Media B.V. 2012.
- Chen, Xinzhi,Zhou, Shaodong,Qian, Chao,He, Chaohong
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p. 1619 - 1628
(2012/10/30)
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- Friedlaender Condensation of 1H-Pyrazolin-5-ones with o-Aminobenzaldehydes. Synthesis of 1H-Pyrazoloquinolines
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All the possible 1- and 3-monomethyl, monophenyl, dimethyl, diphenyl, and methylphenyl-1H-pyrazolin-5-ones have been condensed with o-aminobenzaldehyde.In some cases (but not all) 1-H-pyrazoloquinolines (10) are formed together with a variety of other products.The balance between formation of hydrazone 11 and the ring-closed 10 is discussed, as is the formation of other products obtained in these condensations.
- Tomasik, Danuta,Tomasik, Piotr,Abramovitch, Rudolph A.
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p. 1539 - 1543
(2007/10/02)
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