272345

Sigma-Aldrich

2,4,6-Triphenylpyrylium tetrafluoroborate

98%

Empirical Formula (Hill Notation):
C23H17BF4O
CAS Number:
Molecular Weight:
396.19
Beilstein/REAXYS Number:
3586533
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

98%

reaction suitability

reaction type: Photocatalysis
reagent type: catalyst

mp

250-251 °C (lit.)

photocatalyst activation

462 nm

SMILES string

F[B-](F)(F)F.c1ccc(cc1)-c2cc([o+]c(c2)-c3ccccc3)-c4ccccc4

InChI

1S/C23H17O.BF4/c1-4-10-18(11-5-1)21-16-22(19-12-6-2-7-13-19)24-23(17-21)20-14-8-3-9-15-20;2-1(3,4)5/h1-17H;/q+1;-1

InChI key

VQYPWMWEJGDSTF-UHFFFAOYSA-N

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Application

2,4,6-Triphenylpyrylium tetrafluoroborate was used as a sensitizer to carry out the photooxidation of cathecol. It was also used in the preparation of three N-alkylpyridinium photosensitizers by reacting with (1R,2S)-(-)-norephedrine, (S)-(+)-2-(aminomethyl)pyrrolidine and (R)-(-)-1-cyclohexylethylamine.

Packaging

5 g in glass bottle

Certificate of Analysis

Certificate of Origin

[Experiences with replacement of the eyelid-levator].
K Hollmann
Fortschritte der Kiefer- und Gesichts-Chirurgie, 22, 98-99 (1977-01-01)
Mercedes Alvaro et al.
The Journal of organic chemistry, 67(15), 5184-5189 (2002-07-20)
Three N-alkylpyridinium photosensitizers having chiral alkyl groups have been prepared by reacting 2,4,6-triphenylpyrylium tetrafluoroborate ion with (1R,2S)-(-)-norephedrine, (S)-(+)-2-(aminomethyl)pyrrolidine, and (R)-(-)-1-cyclohexylethylamine. Laser flash photolysis allows detection of the corresponding triplet excited states that are quenched by hydrogen atom donors and electron...
Remigiusz Bąchor et al.
International journal of molecular sciences, 21(9) (2020-05-07)
Detection of podocytes in urine might serve as a useful diagnostic tool in both primary and secondary glomerular diseases. The utility of podocyturia has been confirmed for both pre-eclampsia and glomerulonephritis. Here, we present a new and sensitive method for...
Żaneta Rembisz et al.
Journal of chromatography. A, 1407, 184-192 (2015-07-15)
A high-performance liquid chromatography method based on pre-column derivatization with the pyrylium salts (4-[p-(N,N-dimethylamino)phenyl]-2,6-diphenylpyrylium perchlorate (LN1) and 2,4,6-triphenylpyrylium tetrafluoroborate (L1)) has been developed for the determination of sulfide. After the reaction of sulfide ions with LN1 or L1 aiming at...

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