1902
DOI: 10.1002/cber.19020350313
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Thiosemicarbazid als Reagens auf Aldehyde und Ketone

Abstract: 2ti02 triigt man in 8 -10 Theile concentrirter Schwefelsaure unter Kiihlung ein. Man erhiilt erst eine intensiv rothe Losung, die beim Erwarmen unter Gasentwickelung in gelbbraun umschliigt. Aus dieser Losung holirt man die in guter Ausbeute entstehende I-Amido-4-oxyanthrachinou-2-sulfosbure wie unter 6 angegeben. Sie liefert Chinizaringriin und lasst sich nochmals mit Hydroxylitrnin kuppelu. (Siehe unter 5). 0.2393 g Sbst.: 7.2 ccm N (200, 741 mmi Die Untersachuog wird fortgesetzt. Ct4H806NSKa. Ber, N 3.92. G… Show more

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Cited by 46 publications
(42 citation statements)
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“…For one of the first reports of the synthesis of thiosemicarbazone derivatives, see: Freund & Schander (1902 (2) 3.3104 (12) 173.0 (17) Symmetry codes: (i) x þ 1 2 ; Ày À 1 2 ; Àz þ 1; (ii) x À 1 2 ; Ày À 1 2 ; Àz þ 1.…”
Section: Related Literaturementioning
confidence: 99%
See 1 more Smart Citation
“…For one of the first reports of the synthesis of thiosemicarbazone derivatives, see: Freund & Schander (1902 (2) 3.3104 (12) 173.0 (17) Symmetry codes: (i) x þ 1 2 ; Ày À 1 2 ; Àz þ 1; (ii) x À 1 2 ; Ày À 1 2 ; Àz þ 1.…”
Section: Related Literaturementioning
confidence: 99%
“…The synthesis of the title compound was adapted from a previously reported procedure (Freund & Schander, 1902). In a hydrochloric acid catalyzed reaction, a mixture of (-)-menthone (10 mmol) and thiosemicarbazide (10 mmol) in ethanol (80 ml) was refluxed for 5 h. After cooling and filtering, the title compound was obtained.…”
Section: S2 Synthesis and Crystallizationmentioning
confidence: 99%
“…R-camphor was oxidized with SeO 2 to the respective 1,2-diketone (Młochowski & Wó jtowicz-Młochowska, 2015). The synthesis of the R-camphor-4-phenylthiosemicarbazone derivative was adapted from a procedure reported previously (Freund & Schander, 1902).…”
Section: Synthesis and Crystallizationmentioning
confidence: 99%
“…The ligand synthesis was adapted from a procedure reported previously (Freund & Schander, 1902). A mixture of N-phenyl-2-(1,2,3,4-tetrahydronaphthalen-1-ylidene)hydrazinecarbothioamide dissolved in THF (2 mmol/40 mL) with zinc acetate dihydrate dissolved in ethanol (1 mmol/30 mL) was refluxed for 4 h under continuous stirring.…”
Section: Synthesis and Crystallizationmentioning
confidence: 99%