1961
DOI: 10.1002/jlac.19616390118
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Auf das Zentralnervensystem wirkende Substanzen, XVIII. Über 3‐Phenyl‐azetidin

Abstract: Es wird iiber die Herstellung von 3-Phenyl-azetidin durch LiAIH4-Reduktion des 3-Phenyl-azetidinons-(2) berichtet. Das Verfahren zur Darstellung lebterer Verbindung wurde entscheidend verbessert. 3-Phenyl-azetidin wurde zahlreichen Umwandlungen (Acylierung, direkter und reduzierender Alkylierung, Herstellung von quartaren Ammoniumsalzen, Ureiden usw.) unterworfen und sein typisches Verhalten als sekundares Amin bestatigt. In keinem Fall war eine Ringsprengung oder Ringweitenanderung zu beobachten. uber die phy… Show more

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Cited by 19 publications
(2 citation statements)
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“…Various methods for the preparation of achiral β 2,2 -amino acids: (a) Nucleophilic displacement of the hydroxy group in hydroxypivalic acid by PBr 5 followed by treatment with ethanolic NH 3 . [50] (b) Dialkylation of methyl cyanoacetate with alkyl halides [51] or various dibromides [52] [53] to yield α,α-disubstituted methyl cyanoacetates (which can alternatively be prepared by Mitsunobu reaction of diols with methyl cyanoacetate [54] ); selective reduction of the cyanoesters, [5,34,55] N-protection, and saponification of the ester group affords the β 2,2 -amino acid derivatives. (c) Hydrolytic cleavage of 5,5-diethylbarbituric acid, [56] obtained by desulfurization [35] of 5,5-diethyl-4-thiobarbituric acid.…”
Section: Disubstituted Amino Acidsmentioning
confidence: 99%
“…Various methods for the preparation of achiral β 2,2 -amino acids: (a) Nucleophilic displacement of the hydroxy group in hydroxypivalic acid by PBr 5 followed by treatment with ethanolic NH 3 . [50] (b) Dialkylation of methyl cyanoacetate with alkyl halides [51] or various dibromides [52] [53] to yield α,α-disubstituted methyl cyanoacetates (which can alternatively be prepared by Mitsunobu reaction of diols with methyl cyanoacetate [54] ); selective reduction of the cyanoesters, [5,34,55] N-protection, and saponification of the ester group affords the β 2,2 -amino acid derivatives. (c) Hydrolytic cleavage of 5,5-diethylbarbituric acid, [56] obtained by desulfurization [35] of 5,5-diethyl-4-thiobarbituric acid.…”
Section: Disubstituted Amino Acidsmentioning
confidence: 99%
“…I1 semble en effet que les azetines ne puissent exister que pour des substitutions tres particulieres de l'hCtCrocycle (8a, 9). I1 n'Ctait (10). L'ouverture de 1'hCtCrocycle au cours de l'hydrolyse reste possible (8b).…”
Section: Kaminsky Et Lamchen (2) Pour Des Oxazirannesunclassified