1954
DOI: 10.1002/prac.19540010106
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Zur Kenntnis der Falicaine. IV. Über 4‐Alkoxyphenylvinylketone

Abstract: InhaltsubersichtDie Pyrolyse der 4-Alkoxy-8-piperidinopropiophenone (Falicaine) fuhrt zu paraalkoxylierten Phenylvinylketonen. Geschwindigkeitskonstanten und Aktivitatsenergie fur den thermischen Zerfall des 4-Propoxy-/3-piperidinopropiophenon-hydrochlorids werden mitgeteilt. Die auf diese Weise erhaltenen Vinylverbindungen sind willkommene Ausgangsstoffe fur die verschiedensten Anlagerungsreaktionen. Die vorliegende Arbeit schlagt einen anderen, experimentell bequemeren Weg ein, um zu ihnen zu gelangen: Abspa… Show more

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Cited by 17 publications
(2 citation statements)
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“…(1) 1,3-Diphenyl-2-pyrazoline, mp 151 °C,10 Xmax 355 nm, e 2.05 X 104 (isooctane); (2) l,3,5-triphenyl-2-pyrazoline, mp 136 °C,n Xmax 357 nm, e 2.03 X 104 (isooctane); (3) l-phenyl-3-mesityl-2-pyrazoline, mp 96 °C, Xmax 292.5 nm, ( 1.40 X 104 (isooctane); (4) l-phenyl-3-(2',4',6'-trimethoxyphenyl)-2-pyrazoline, mp 150 °C, Xmax 297.5 nm, e 1.58 X 104 (isooctane); (5) l-phenyl-3-(2',6/-dimethoxyphenyl)-2-pyrazoline, mp 131 °C, Xmax 295 nm, e 1.34 X 104 (isooctane); (6) l-(2,6-dimethylphenyl)-3-(2',5,-dimethoxyphenyl)-2-pyrazoline, mp 82 °C, Xmax 339.5 nm, e 1.73 X 104 (isooctane); (7) l-(2,6-dimethylphenyl)-3-(2',6'-dimethoxyphenyl)-2-pyrazoline, mp 117 °C, Xmax 285 nm, e 0.95 X 104 (isooctane); (8) l-phenyl-3-(4'-methoxyphenyl)-2-pyrazoline, mp 142 °C,12 Xmax 358 nm, e 2.03 X 104 (benzene); (9) l-phenyl-3-(3'-methoxyphenyl)-2pyrazoline, mp 73 °C, Xmax 364 nm, e 1.99 X 104 (benzene); (10) l-phenyl-3-(2'-methoxyphenyl)-2-pyrazoline, mp 110 °C, Xmax 361 nm, e 1.65 X 104 (benzene); (11) 1-phenyl-3-(2',4'-dimethoxyphenyl)-2-pyrazoline, mp 106 °C, Xmax 356 nm, e 1.72 X 104 (benzene); (12) l-phenyl-3-(2',5'-dimethoxyphenyl)-2-pyrazoline, mp 90 °C, Xmax 368 nm, e 1.73 X 104 (benzene); (13) l-phenyl-3-(3',4'-dimethoxyphenyl)-2-pyrazoline, mp 124 °C, Xmax 360 nm, c 2.30 X 104 (benzene); (14) l-phenyl-3-(3',5'-dimethoxyphenyl)-2pyrazoline, mp 126 °C, Xmax 363.5 nm, e 2.11 X 104 (benzene); (15) l-phenyl-3-(3',4',5'-trimethoxyphenyl)-2pyrazoline, mp 135 °C, Xmax 363 nm, e 2.17 X 104 (benzene).…”
Section: Methodsmentioning
confidence: 99%
“…(1) 1,3-Diphenyl-2-pyrazoline, mp 151 °C,10 Xmax 355 nm, e 2.05 X 104 (isooctane); (2) l,3,5-triphenyl-2-pyrazoline, mp 136 °C,n Xmax 357 nm, e 2.03 X 104 (isooctane); (3) l-phenyl-3-mesityl-2-pyrazoline, mp 96 °C, Xmax 292.5 nm, ( 1.40 X 104 (isooctane); (4) l-phenyl-3-(2',4',6'-trimethoxyphenyl)-2-pyrazoline, mp 150 °C, Xmax 297.5 nm, e 1.58 X 104 (isooctane); (5) l-phenyl-3-(2',6/-dimethoxyphenyl)-2-pyrazoline, mp 131 °C, Xmax 295 nm, e 1.34 X 104 (isooctane); (6) l-(2,6-dimethylphenyl)-3-(2',5,-dimethoxyphenyl)-2-pyrazoline, mp 82 °C, Xmax 339.5 nm, e 1.73 X 104 (isooctane); (7) l-(2,6-dimethylphenyl)-3-(2',6'-dimethoxyphenyl)-2-pyrazoline, mp 117 °C, Xmax 285 nm, e 0.95 X 104 (isooctane); (8) l-phenyl-3-(4'-methoxyphenyl)-2-pyrazoline, mp 142 °C,12 Xmax 358 nm, e 2.03 X 104 (benzene); (9) l-phenyl-3-(3'-methoxyphenyl)-2pyrazoline, mp 73 °C, Xmax 364 nm, e 1.99 X 104 (benzene); (10) l-phenyl-3-(2'-methoxyphenyl)-2-pyrazoline, mp 110 °C, Xmax 361 nm, e 1.65 X 104 (benzene); (11) 1-phenyl-3-(2',4'-dimethoxyphenyl)-2-pyrazoline, mp 106 °C, Xmax 356 nm, e 1.72 X 104 (benzene); (12) l-phenyl-3-(2',5'-dimethoxyphenyl)-2-pyrazoline, mp 90 °C, Xmax 368 nm, e 1.73 X 104 (benzene); (13) l-phenyl-3-(3',4'-dimethoxyphenyl)-2-pyrazoline, mp 124 °C, Xmax 360 nm, c 2.30 X 104 (benzene); (14) l-phenyl-3-(3',5'-dimethoxyphenyl)-2pyrazoline, mp 126 °C, Xmax 363.5 nm, e 2.11 X 104 (benzene); (15) l-phenyl-3-(3',4',5'-trimethoxyphenyl)-2pyrazoline, mp 135 °C, Xmax 363 nm, e 2.17 X 104 (benzene).…”
Section: Methodsmentioning
confidence: 99%
“…Following the directions given by Bucchi (141, with the exception of an increased hydrolysis period to 8 hours, the following p-alkoxyanilines were prepared: p-propoxy (151, p-isopropoxy (14), p-iz-butoxy (15), p-n-arnoxy ( 15). p-sec-Butoxyanilirie was prepared by this method in 80% yield, b.p.…”
Section: Methodsmentioning
confidence: 99%