Collection: Aryne Precursors, Heteroaryne Precursors

Aryne Precursors, Heteroaryne Precursors — covers aryne and heteroaryne precursors such as derivatives of benzyne, naphthalyne, pyridyne, and quinolyne, along with the reagents that trigger their formation, such as silyl-substituted aromatic triflates. These compounds serve as sources of reactive strained-ring intermediates generated in situ during the reaction.

Aryne Precursors are used by synthetic organic chemists for cycloaddition, insertion, and functionalization of aromatic rings to build polycyclic and heterocyclic frameworks that are difficult to achieve through conventional aromatic substitution. Benzyne and heteroaryne precursors are generally generated with fluoride from an adjacent silyl-triflate group, then trapped by various nucleophiles or dienophiles in a single reaction step.

Example products in this collection: TCI T3357 66107-34-4 o-Tolyl Trifluoromethanesulfonate, TCI B5557 1637638-66-4 2-(tert-Butyldimethylsilyl)-1,3-phenylene Bis(trifluoromethanesulfonate), TCI T3241 53397-65-2 5,6,11,12-Tetradehydrodibenzo[a,e]cyclooctene, TCI B5559 613676-07-6 2,5-Bis(trimethylsilyl)-1,4-phenylene Bis(trifluoromethanesulfonate), TCI T2467 847925-63-7 1,3,5-Tris[4-(trifluoromethanesulfonyloxy)-3-(trimethylsilyl)phenyl]benzene, TCI C0227 619-08-9 2-Chloro-4-nitrophenol, TCI T2466 780820-43-1 3-(Trimethylsilyl)-2-naphthyl Trifluoromethanesulfonate, TCI C0280 626-60-8 3-Chloropyridine.

Choose a precursor based on the type of aryne ring to be generated (benzyne, naphthalyne, pyridyne, or quinolyne) and the silyl-triflate substitution pattern, as both determine the regioselectivity of the cycloaddition products. All products are genuine products of Tokyo Chemical Industry (TCI) Japan, with purity, packaging, and storage conditions listed on each item's page.

Other categories aligned under Organic Synthetic Reagents, often used together in one laboratory workflow:

• C-C Bond Formation [Synthetic Reagents]
• C-X(Non-Halogen) Bond Formation [Synthetic Reagents]
• Protection, Deprotection, Derivatization
• Acids, Bases [Synthetic Reagents]
• Chelation/Complexation Compounds
• Phase Transfer Catalysts

This collection is further divided into 6 more specific groups:

• Benzyne Precursors
• Naphthalyne Precursors
• Pyridyne Precursors
• Quinolyne Precursors
• Aryne Precursors (Other), Related Compounds
• Reagents for the Generation of Arynes

Back to Organic Synthetic Reagents. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team — official distributor of TCI Japan in Indonesia — to check availability and lead time directly from Japan.