2-Butyl-1,3,2-dioxaborolane-4s,5s-dicarboxylicacidbis(dimethylamidE) , 95% , 161344-84-9

Synonym(s):
(4S,5S)-2-Butyl-N,N,N′N′-tetramethyl-1,3,2-dioxaborolane-4,5-dicarboxamide

CAS NO.：161344-84-9

Empirical Formula: C12H23BN2O4

Molecular Weight: 270.13

MDL number: MFCD05663838

PRODUCT Properties

• Boiling point: 305-306 °C (lit.)
• Density: 1.096 g/mL at 25 °C (lit.)
• refractive index: n20/D 1.4780(lit.)
• Flash point: >230 °F
• storage temp.: under inert gas (nitrogen or Argon) at 2-8°C
• pka: -0.81±0.40(Predicted)
• Appearance: Colorless to light yellow Liquid
• optical activity: [α]20/D +106°, c = 1% in chloroform

Description and Uses

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.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H302-H315-H319-H335
• Precautionary statements: P261-P305+P351+P338
• WGK Germany: 3
• HazardClass: IRRITANT
• HS Code: 2933998090