1971
DOI: 10.1002/cber.19711040230
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Über Cyclokondensationen mit offenkettigen Amidrazonen

Abstract: rn Durch Kondensation von N3-Phenyl-benzamidrazon mit N-Dichlormethylen-benzamid, Phenylsenfol, Diphenylketen, N-[p-Tolyll-diphenylketenimin, Dicyclohexylcarbodiimid, einem Inamin, einem Acetylenather, S-Methyl-isothioharnstotf-sulfat, Oxalsaure-und Brenztraubensaureestern entstehen die entsprechenden s-Triazol-Derivate. Nj-Phenyl-N I-benzoylbenzamidrazon reagiert mit Thionylchlorid zum 1.2.3.5-Thiatriazol-S-oxid-Derivat (14). Cyclocondensations of Open Chain AmidrazonesThe condensation of N3-phenylbenzamidraz… Show more

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Cited by 27 publications
(9 citation statements)
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“…The 1 H nmr spectrum of 6a exhibited the presence of two typical trans olefinic protons at 8.13 and 5.03 ppm with a coupling constant J of 14 Hz. This conformation could explain the relative stability of 5a-b,6a towards an ulterior intramolecular cyclization involving the second nucleophilic nitrogen atom [14]. A comparable behavior of related amidines towards other biselectrophiles was previously described [15][16][17].…”
supporting
confidence: 73%
“…The 1 H nmr spectrum of 6a exhibited the presence of two typical trans olefinic protons at 8.13 and 5.03 ppm with a coupling constant J of 14 Hz. This conformation could explain the relative stability of 5a-b,6a towards an ulterior intramolecular cyclization involving the second nucleophilic nitrogen atom [14]. A comparable behavior of related amidines towards other biselectrophiles was previously described [15][16][17].…”
supporting
confidence: 73%
“…Thionylchlorid zu Oxadiazol-und TriazolSystemen reagieren. Mit Phosgen entstehen dabei vorzugsweise 1,3,4-Oxadiazolone und keine 1,2,4-Triazolone [13,14], Im Gegensatz dazu ist bei der Um setzung mit Thionylchlorid im allgemeinen die Bildung von Thiatriazol-S-oxiden gegenüber der von Oxathiadiazol-S-oxiden bevorzugt [11,14,15].…”
Section: Oxadiazin (10)unclassified
“…C 62,53 H 10,02 N 19,88,Gef. C 62,38 H 9,81 N 19,2, -I3C-NM R (CDCI3): (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)35,13,92 (2 CH ,);21,96,25,83,28,30,28,43,28,54,31,11 (6 C H ,) Ber . C 63,96 H 10,29 N 18,65,Gef.…”
Section: -Hoetmentioning
confidence: 99%
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