682144

(R)-(–)-4,12-Bis(diphenylphosphino)-[2.2]-paracyclophane

96%

• Synonyme(s) : (R)-Phanephos
• Formule empirique (notation de Hill): C₄₀H₃₄P₂
• Numéro CAS: 364732-88-7
• Poids moléculaire : 576.65
• Numéro MDL: MFCD03094575
• Code UNSPSC : 12352002
• ID de substance PubChem : 24885681
• Nomenclature NACRES : NA.22

Propriétés

• Niveau de qualité: 100
• Pureté: 96%
• Forme: solid
• Activité optique: [α]/D -34±4°, c = 1 in chloroform
• Pf: 222-226 °C
• Groupe fonctionnel: phosphine
• InChI: 1S/C40H34P2/c1-5-13-35(14-6-1)41(36-15-7-2-8-16-36)39-29-31-21-25-33(39)27-23-32-22-26-34(28-24-31)40(30-32)42(37-17-9-3-10-18-37)38-19-11-4-12-20-38/h1-22,25-26,29-30H,23-24,27-28H2
• Clé InChI: GYZZZILPVUYAFJ-UHFFFAOYSA-N

Description

Application

(R)-(-)-4,12-Bis(diphenylphosphino)-[2.2]-paracyclophane may be used as a ligand in the following processes:

• Enantioselective reductive cyclization of 1,6-enynes via asymmetric hydrogenation in the presence of a rhodium catalyst to form alkylidene-substituted heterocycles.
• Asymmetric hydroboration of 3,3-disubstituted cyclopropenes to form 2,2-disubstituted cyclopropyl boronates.
• Asymmetric ring-opening reactions of azabenzonorbornadienes in the presence of zinc(II) triflate and palladium(II) acetate to form aminodihydronaphthalenes.

Efficient ligand for asymmetric hydrogentation of dehydroamino acids, methyl esters and keytones.

Informations légales

Sold in collaboration with Johnson Matthey Catalyst for research purposes only. US5874629 and any patents arising therefrom apply.

Informations sur la sécurité

• 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
• Équipement de protection individuelle: dust mask type N95 (US), Eyeshields, Gloves