76162-49-7

Upstream product

• 2930-37-2 2,4,6-triphenylthiopyrylium perchlorate 
• 448-61-3 2,4,6-triphenylpyrylium tetrafluoroborate 
• 100-01-6 4-nitro-aniline 
• 109-73-9 N-butylamine 
• 801-06-9 2,4,6-triphenyl-4H-pyran 
• 68-12-2 N,N-dimethyl-formamide 
• 88-05-1 2,4,6-trimethylaniline 
• 23809-15-6 2,4,6-triphenylpyranyl 
• 98-86-2 acetophenone 
• 7338-94-5 1,3-diphenyl-2-propynone 
• 70962-62-8 2,4,6-triphenylpyrylium trifluoromethanesulphonate 
• 62-53-3 aniline 
• 1484-88-4 2,4,6-triphenylpyrilium perchlorate 

Downstream Products

• 40836-01-9 2,4,6-triphenylpyrylium chlorophosphate 
• 134224-59-2 1,2,5-triphenyl-2,4-dichloro-2-pentene-1,5-dione 
• 109272-56-2 3-benzoyl-1-(4-chlorophenyl)-4,6-diphenyl-5-methyl-2-thioxo-1,2-dihydropyridine 
• 109272-55-1 3-benzoyl-4,6-diphenyl-1-(4-methoxyphenyl)-5-methyl-2-thioxo-1,2-dihydropyridine 
• 71771-23-8 C₅₂H₄₆N₂⁽²⁺⁾*2F^(1-) 
• 71742-08-0 2,4,6,2',4',6'-hexaphenyl-1,1'-pentane-1,5-diyl-bis-pyridinium; difluoride 
• 71742-07-9 2,4,6,2',4',6'-hexaphenyl-1,1'-butane-1,4-diyl-bis-pyridinium; difluoride 
• 71742-04-6 2,4,6-triphenyl-1-undecyl-pyridinium; fluoride 
• 71742-10-4 1-(2,4-Dichloro-benzyl)-2,4,6-triphenyl-pyridinium; fluoride 
• 71742-03-5 1-Octyl-2,4,6-triphenyl-pyridinium; fluoride 
• 71742-02-4 1-heptyl-2,4,6-triphenyl-pyridinium; fluoride 
• 71742-11-5 1-(2-Chloro-benzyl)-2,4,6-triphenyl-pyridinium; fluoride 
• 71742-09-1 1-(4-Chloro-benzyl)-2,4,6-triphenyl-pyridinium; fluoride 
• 71742-12-6 1-(3-Hydroxy-propyl)-2,4,6-triphenyl-pyridinium; fluoride 

Relevant academic research and scientific papers

Regiocontrolled synthesis of 2,4,6-triarylpyridines from methyl ketones, electron-deficient acetylenes and ammonium acetate

A novel one-pot two-step approach for the synthesis of 2,4,6-triarylpyridinesvia t-BuOK/DMSO-promotedC-vinylation of a variety of methyl ketones with electron-deficient acetylenes (alkynones) followed by a cyclization of thein situgenerated unsaturated 1,5-dicarbonyl species with ammonium acetate has been developed. This approach possesses competitive advantages such as high regioselectivity, available starting materials and the absence of transition-metal catalysts, oxidants and undesirable byproducts. A wide synthetic utility of the developed approach was demonstrated by the synthesis of trisubstituted, tetrasubstituted and fused pyridines.

Triphenylpyrylium salt-sensitized photoreactions of 1,4-diaryl-2,3- dioxabicyclo[2.2.2]octanes through competitive single electron-transfer pathway and proton-catalyzed pathway

2,4,6-Triphenylpyrylium tetrafluoroborate (TPPBF4)-sensitized photoinduced electron-transfer (PET) reactions of 1,4-diaryl-2,3-dioxabicyclo[2. 2.2]octanes 5 (a: Ar1 = Ar2 = p-MeOC6H 4, b: Ar1 = Ar2 = p-MeC6H 4, c: Ar1 = Ar2 = Ph) underwent novel fragmentation through their radical cations to give 1,4-diarylbutan-1,4-diones 6 accompanied by elimination of ethylene. On the other hand, 4-aryl-cyclohex-3- en-1-ones 7, p-substituted phenols 8, and 4-aryl-4-aryloxycyclohexanones 9 were produced through proton-catalyzed pathways when the PET reactions of 5 were performed in the absence of a certain base such as 2,6-di-tert-butylpyridine (DTBP). Particularly, the formation of 9 is consistent with the novel cationic rearrangement involving nucleophilic O-1,2-aryl shifts and C-1,4-aryl shifts.

Free Radicals: XXVI. Reaction of 2,4,6-Triphenylpyranyl Radical with Oxygen

Triphenylpyranyl radical reacts with oxygen to give 1,3,5-tiphenyl-2-pentene-1,5-dione, 3-phenoxymethyl-2,5-diphenylfuran, and 5-phenoxymethyl-2,4-diphenylfuran.

SYNTHESIS AND PROPERTIES OF 3-FORMYL-4H-PYRANS

The Vilsmeier formylation of 4H-pyrans afforded 3-formyl-4H-pyrans.These were converted to 3-formylpyrylium salts, from which pyridine or pyridine salts with an aldehyde group at C(3) were obtained.The reaction between 3-formyl-4-allyl-4H-pyran

Pyridinethiones, X. - Preparation of Pentene-1,5-dione Enolates and of 3-Benzoyl-2(1H)-pyridinethiones

An effective synthesis of 3-benzoyl-2(1H)-pyridinethiones 5a-n from stable enol salts 4 of pentene-1,5-diones and isothiocyanates is described.An attempt to prepare a 3-acetyl-2(1H)-pyridinethione from the cyano compound 7 and CH3MgX yielded the ketimine

UNTERSUCHUNGEN AN DIAZOVERBIDUNGEN UND AZIDEN-XLV ELECTROPHILE DIAZOALKANSUBSTITUTION AN PHOSPHORYLDIAZOMETHANEN MIT THIAPYRYLIUMSALZEN

Electrophilic diazoalkane substitution of the phosphoryl diazomethanes 2a-e with 2,6-di-tert-butylthiapyrylium-tetrafluoroborate (1) yiels the 4-(diazomethyl)-4H-thiapyranes 3a-e; the olefin 5 is formed as by-product in all cases.The μ-allylpalladium chlo

Pyrylium Compounds. XXI. - Structure and Tautomerism of Pseudobases of Unsymmetrically Substituted 2,4,6-Triarylpyrylium Salts

Hydrolytic ring opening of unsymmetrically substituted 2,4,6-triarylpyrylium salts 11 results in a mixture of two tautomeric pseudobases, the penten-1,5-diones 13 and 14.In crystalline state as a rule one of these tautomers markedly predominates, whereas

The Preparation of Pyridiniums from Pyryliums

Mild preparative conditions are described for the reaction of primary alkyl-, secondary alkyl-, and aryl-primary amines (including weakly basic amines) with pyryliums (including those with bulky α-substituents).Conditions were optimized by 13C n.m.r. stud