2,2′-Bis(diphenylphosphino)-1,1′-binaphthalene

CAS 98327-87-8[(C6H5)2PC10H6-]2Catalysis & Inorganic

2,2′-Bis(diphenylphosphino)-1,1′-binaphthalene (CAS: 98327-87-8) is a phosphine ligand with a molecular weight of 622.67 g/mol. This compound is a key component in various catalytic processes, including palladium-catalyzed arylamine coupling and the addition of arylsulfonamides to styrenes and olefins. It is widely utilised in chemical synthesis for facilitating complex bond formations.

IUPAC: (±)-2,2′-Bis(diphenylphosphino)-1,1′-binaphthalene,(±)-BINAP,[1,1′-Binaphthalene]-2,2′-diylbis[diphenylphosphine]
Synonyms: 98327-87-8, [(C6H5)2PC10H6-]2, (±)-2,2′-Bis(diphenylphosphino)-1,1′-binaphthalene,(±)-BINAP,[1,1′-Binaphthalene]-2,2′-diylbis[diphenylphosphine]

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2,2′-Bis(diphenylphosphino)-1,1′-binaphthalene ([(C6H5)2PC10H6-]2) — chemical structure, CAS 98327-87-8; Chemistry, fine chemical supplied by Tech Serve Solutions

CatalysisChemical SynthesisPhosphine Compounds

01 /Applications

Palladium-Catalyzed Arylamine Coupling

This ligand is employed in palladium-catalysed arylamine coupling reactions, notably in the synthesis of demethylthiocholchines, serving as a critical component for efficient bond formation.

Catalysis of Arylsulfonamide Addition

In conjunction with Copper (II), it acts as a catalyst for the addition of arylsulfonamides to styrenes and olefins, enabling versatile synthetic transformations.

Amination of Terpyridines

The compound facilitates the amination of terpyridines through palladium catalysis, contributing to the synthesis of complex heterocyclic structures.

02 /Properties

Molecular weight	622.67
Linear formula	[(C6H5)2PC10H6-]2
Assay	97%
Application	Ligand employed in a palladium-catalyzed arylamine coupling in the preparation of demethylthiocholchines.1 Used with Cu (II) to catalyze addition of arylsulfonamides to styrenes and olefins.2 Amination of terpyridines with Pd catalysis.3
Melting point	283-286 °C(lit.)

03 /Safety & handling

Protective equipment	Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
Water hazard class (WGK, DE)	3

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

98327-87-8

MDL number

MFCD00010805

Beilstein registry

5321443

05 /Additional specifications

Ligand For	AcylationsArylationsBuchwald-Hartwig Cross Coupling ReactionC-C Bond FormationDecarboxylationsStille Coupling

06 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

07 /Frequently asked questions

What is 2,2′-Bis(diphenylphosphino)-1,1′-binaphthalene used for?

2,2′-Bis(diphenylphosphino)-1,1′-binaphthalene is primarily used as a ligand in various catalytic reactions, including palladium-catalyzed arylamine coupling, addition of arylsulfonamides to olefins, and amination of terpyridines.

What is the CAS number and formula for this compound?

The CAS number is 98327-87-8. The linear formula is [(C₆H₅)₂PC₁₀H₆-]₂.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 2,2′-Bis(diphenylphosphino)-1,1′-binaphthalene with an assay of 97%. This product is suitable for research and development purposes, and TSS does not represent it as USP, BP, or EP grade.

What are the safety and handling precautions for this chemical?

Handling this chemical requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. It carries a WGK rating of 3 in Germany, indicating a high level of hazard.

How is 2,2′-Bis(diphenylphosphino)-1,1′-binaphthalene packed and shipped?

This chemical is carefully packed and exported by Tech Serve Solutions in compliance with international shipping regulations for hazardous materials.

How can I request a quote or sample?

To request a quote or a sample of 2,2′-Bis(diphenylphosphino)-1,1′-binaphthalene, please contact the Tech Serve Solutions sales team through our website or by phone.