594806

Butylboronsäure-N,N,N′,N′-tetramethyl-D-weinsäurediamidester

97%

• Synonym(e): (4S,5S)-2-Butyl-N,N,N′N′-tetramethyl-1,3,2-dioxaborolan-4,5-dicarboxamid
• Empirische Formel (Hill-System): C₁₂H₂₃BN₂O₄
• CAS-Nummer: 161344-84-9
• Molekulargewicht: 270.13
• MDL-Nummer: MFCD05663838
• UNSPSC-Code: 12352103
• PubChem Substanz-ID: 24881537
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 100
• Assay: 97%
• Optische Aktivität: [α]20/D +106°, c = 1% in chloroform
• Brechungsindex: n20/D 1.4780 (lit.)
• bp: 305-306 °C (lit.)
• Dichte: 1.096 g/mL at 25 °C (lit.)
• SMILES String: CCCCB1O[C@@H]([C@H](O1)C(=O)N(C)C)C(=O)N(C)C
• InChI: 1S/C12H23BN2O4/c1-6-7-8-13-18-9(11(16)14(2)3)10(19-13)12(17)15(4)5/h9-10H,6-8H2,1-5H3/t9-,10-/m0/s1
• InChIKey: AFQWQRBBIZKYTE-UWVGGRQHSA-N

Beschreibung

Anwendung

Butylboronic acid N,N,N′,N′-tetramethyl-D-tartaric acid diamide is a dioxaborolane ligand that can be used to prepare:

• Enantioenriched spiropentanes via zinc catalyzed cyclopropanation of corresponding hydroxymethylallenes.
• 1,2,3-trisubstituted cyclopropane derivatives by asymmetric cyclopropanation of allylic alcohols in the presence of zinc reagents.
• Glycolipids plakosides A, B, and their derivatives by Sharpless asymmetric dihydroxylation and cyclopropanation reaction.

Sicherheitshinweise

• Lagerklassenschlüssel: 10 - Combustible liquids
• WGK: WGK 3
• Flammpunkt (°F): >230.0 °F - closed cup
• Flammpunkt (°C): > 110 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)