1929
DOI: 10.1002/cber.19290620909
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Triphenyl‐methylchlorid und Pyridin (Nachtrag zur Arbeit: Über die Goldschmiedtschen Kondensationsprodukte der 2.3‐Oxy‐naphthoesäure mit aromatischen Aldehyden und ihre Beziehungen zur Triphenyl‐methan‐Gruppe). (Nach Versuchen von Georg Mandrino.)

Abstract: Re b e k : Triphenyl-methylchlorid und Pyridin. [ Jahrg. 6 2 398. M a r i u s Re b e k: Triphenyl-methylchlorid und Pyridin (Nachtrag zur Arbeit : tfber die G o 1 d s c h m i e d t schen Kondensationsprodukte der 2.3-Oxy-naphthoesaure mit aromatischen Aldehyden und ihre Beziehungen zur Triphenyl-methan-Gruppe). (Nach Versuchen von G e o r g M an d r i n 0 . ) ;Aus d. Laborat. fur organ. Chemie d. Cheni. Instituts d. Universitat Ljubljana.]Vor kurzein beschrieb ich mit V. K r a m a r i i 6 ein Produkt aus T r … Show more

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“…I t may also be noted that this marked and specific effect of pyridine on the radiochloride exchange is quite different from the catalysis of the reaction by, for example, nitrobenzene, which exhibits a macroscopic cosolvent effect (4). Although many attempts have been made to prepare a quaternary ammonium salt from these two compounds (3,(11)(12)(13)(14)(15), the products isolated by the earlier workers were shown by Hughes (15) to be a molecular comp o u n d , (C6Hj)aCOH.CjHbN.HCl. S w a i n and Pegues (3) confirmed that only in the presence of small amounts of water is a product formed.…”
Section: Table Imentioning
confidence: 99%
“…I t may also be noted that this marked and specific effect of pyridine on the radiochloride exchange is quite different from the catalysis of the reaction by, for example, nitrobenzene, which exhibits a macroscopic cosolvent effect (4). Although many attempts have been made to prepare a quaternary ammonium salt from these two compounds (3,(11)(12)(13)(14)(15), the products isolated by the earlier workers were shown by Hughes (15) to be a molecular comp o u n d , (C6Hj)aCOH.CjHbN.HCl. S w a i n and Pegues (3) confirmed that only in the presence of small amounts of water is a product formed.…”
Section: Table Imentioning
confidence: 99%
“…They represented this com-+ plex as the tritylpyridinium ion, (C,H,),CNC,-H,. Streitwieser (4) also favored the formation of triphenylmethylpyridinium chloride as the explanation of this reaction, despite the fact that there had been several unsuccessful attempts to synthesize this compound (5)(6)(7)(8)(9)(10)(11). However, in 1970, the preparation of the compound was reported by Okamoto and Shimakawa (12) using a pressure of 4000-5000 atm at 60-70 "C. In contrast, these workers prepared tritylpyridinium perchlorate and tetrafluoroborate in acetonitrile solvent at room pressure and temDerature in 10 min.…”
Section: Introductionmentioning
confidence: 99%