Synthesis and tautomeric studies of enamines from 1-(n-Hexyl)-3-methyl-2- pyrazolin-5-one

Julio Belmar; Fredy R. Pérez; Joel Alderete; Celia Zúñiga

doi:10.1590/S0103-50532005000200009

Synthesis and tautomeric studies of enamines from 1-(n-Hexyl)-3-methyl-2- pyrazolin-5-one

Julio Belmar, Fredy R. Pérez, Joel Alderete, Celia Zúñiga

Producción científica: Contribución a una revista › Artículo en revista científica indexada › revisión exhaustiva

12 Citas (Scopus)

Resumen

1-(n-Hexyl)-3-methyl-2-pyrazolin-5-one was acylated with acid chlorides. Condensation of acyl derivatives with primary amines afforded enamines. According to the ¹H and ¹³C NMR data, the acyl derivatives have mainly a 4-acylpyrazol-5-ol structure with intramolecular hydrogen bond, and the 4-aminomethylene derivatives exist predominantly in the enamine form stabilized by the same type of interaction.

Idioma original	Inglés
Páginas (desde-hasta)	179-189
Número de páginas	11
Publicación	Journal of the Brazilian Chemical Society
Volumen	16
N.º	2
DOI	https://doi.org/10.1590/S0103-50532005000200009
Estado	Publicada - 2005
Publicado de forma externa	Sí

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title = "Synthesis and tautomeric studies of enamines from 1-(n-Hexyl)-3-methyl-2- pyrazolin-5-one",

abstract = "1-(n-Hexyl)-3-methyl-2-pyrazolin-5-one was acylated with acid chlorides. Condensation of acyl derivatives with primary amines afforded enamines. According to the 1H and 13C NMR data, the acyl derivatives have mainly a 4-acylpyrazol-5-ol structure with intramolecular hydrogen bond, and the 4-aminomethylene derivatives exist predominantly in the enamine form stabilized by the same type of interaction.",

keywords = "Acylation, Acylpyrazolones, Alkylpyrazolones, Enamines, Pyrazolones",

author = "Julio Belmar and P{\'e}rez, {Fredy R.} and Joel Alderete and Celia Z{\'u}{\~n}iga",

year = "2005",

doi = "10.1590/S0103-50532005000200009",

language = "Ingl{\'e}s",

volume = "16",

pages = "179--189",

journal = "Journal of the Brazilian Chemical Society",

issn = "0103-5053",

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TY - JOUR

T1 - Synthesis and tautomeric studies of enamines from 1-(n-Hexyl)-3-methyl-2- pyrazolin-5-one

AU - Belmar, Julio

AU - Pérez, Fredy R.

AU - Alderete, Joel

AU - Zúñiga, Celia

PY - 2005

Y1 - 2005

N2 - 1-(n-Hexyl)-3-methyl-2-pyrazolin-5-one was acylated with acid chlorides. Condensation of acyl derivatives with primary amines afforded enamines. According to the 1H and 13C NMR data, the acyl derivatives have mainly a 4-acylpyrazol-5-ol structure with intramolecular hydrogen bond, and the 4-aminomethylene derivatives exist predominantly in the enamine form stabilized by the same type of interaction.

AB - 1-(n-Hexyl)-3-methyl-2-pyrazolin-5-one was acylated with acid chlorides. Condensation of acyl derivatives with primary amines afforded enamines. According to the 1H and 13C NMR data, the acyl derivatives have mainly a 4-acylpyrazol-5-ol structure with intramolecular hydrogen bond, and the 4-aminomethylene derivatives exist predominantly in the enamine form stabilized by the same type of interaction.

KW - Acylation

KW - Acylpyrazolones

KW - Alkylpyrazolones

KW - Enamines

KW - Pyrazolones

UR - http://www.scopus.com/inward/record.url?scp=20444418115&partnerID=8YFLogxK

U2 - 10.1590/S0103-50532005000200009

DO - 10.1590/S0103-50532005000200009

M3 - Artículo en revista científica indexada

AN - SCOPUS:20444418115

SN - 0103-5053

VL - 16

SP - 179

EP - 189

JO - Journal of the Brazilian Chemical Society

JF - Journal of the Brazilian Chemical Society

IS - 2

ER -

Synthesis and tautomeric studies of enamines from 1-(n-Hexyl)-3-methyl-2- pyrazolin-5-one

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