2-Butyl-[1,3,2]dioxaborolane-4,5-dicarboxylicacidbis-dimethylamide , 95% , 161344-85-0

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

CAS NO.：161344-85-0

Empirical Formula: C12H23BN2O4

Molecular Weight: 270.13

MDL number: MFCD04038920

PRODUCT Properties

• Boiling point: 178-179 °C(lit.)
• Density: 1.072 g/mL at 25 °C(lit.)
• refractive index: n20/D 1.478(lit.)
• Flash point: >230 °F
• storage temp.: Inert atmosphere,Room Temperature
• pka: -0.81±0.40(Predicted)
• form: oil
• color: Yellow
• optical activity: [α]20/D -105°, c = 1.7% in chloroform

Description and Uses

Butylboronic acid?N,N,N′,N′-tetramethyl-L-tartaric acid diamide ester can be used as a cyclopropanation ligand in one of the key steps for the total synthesis of:

• (+)-Frondosin, a natural product from marine sponges.
• Marine cyanobacterium natural products: coibacins A and B.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P305+P351+P338
• Hazard Codes: Xi
• Safety Statements: 23-24/25
• WGK Germany: 3
• Hazard Note: Irritant
• HS Code: 2931900090