900692

2,4,6-Tris(4-methoxyphenyl)pyrylium tetrafluoroborate

• Synonyme(s) : 2,4,6-Tri-p-anisylpyrylium (TAP) fluoroborate
• Formule empirique (notation de Hill) : C₂₆H₂₃BF₄O₄
• CAS Number: 580-34-7
• Poids moléculaire : 486.26
• Code UNSPSC : 12161600
• Nomenclature NACRES : NA.22

Propriétés

• Forme: powder
• Niveau de qualité: 100
• Pertinence de la réaction: reagent type: catalyst; reaction type: Photocatalysis
• Pf: 346-351 °C
• Chaîne SMILES: COC(C=C1)=CC=C1C2=[O+]C(C3=CC=C(OC)C=C3)=CC(C4=CC=C(OC)C=C4)=C2.FB(F)F.[F-]
• InChI: 1S/C26H23O4.BF3.FH/c1-27-22-10-4-18(5-11-22)21-16-25(19-6-12-23(28-2)13-7-19)30-26(17-21)20-8-14-24(29-3)15-9-20;2-1(3)4;/h4-17H,1-3H3;;1H/q+1;;/p-1
• Clé InChI: BYUPZXIJGVBLGP-UHFFFAOYSA-M

Description

Application

2,4,6-Tris(4-methoxyphenyl)pyrylium tetrafluoroborate can be used to catalyze the stereoselective synthesis of C₂-symmetric cyclobutane alkene dimers via photo-induced electron transfer. This method can be employed for the total synthesis of lignans such as magnosalin, endiandrin A and pellucidin A. It can also catalyze photoinduced electron transfer (PET) to initiate radical-cation Diels-Alder reactions.

Triarylpyrylium salt used as a photosensitizer in photocatalysis and polymerization. This was previously sold under catalog number S921874.

Product can be used with our line of photoreactors: Including Penn PhD (Z744035) & SynLED 2.0 (Z744080)

Autres remarques

David Nicewicz photoredox catalysis
Cyclization–endoperoxidation cascade reactions of dienes mediated by a pyrylium photoredox catalyst
Metal-Free Ring-Opening Metathesis Polymerization
Cationic Polymerization of Vinyl Ethers Controlled by Visible Light
Electron-Transfer-Induced Diels ± Alder Reactions of Indole and Exocyclic Dienes: Synthesis and Quantum-Chemical Studies

Informations sur la sécurité

• Pictogrammes: GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H302 + H312 + H332,H315,H319,H335
• Conseils de prudence: P261 - P280 - P301 + P312 - P302 + P352 + P312 - P304 + P340 + P312 - P305 + P351 + P338
• Classification des risques: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Organes cibles: Respiratory system
• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable