Derivative Type: dl-Form
Properties: Six-sided monoclinic prisms from alcohol, mp 137°. bp768 344°. bp12 194°. Reduces Fehling's soln. uv max (ethanol): 247 nm (e 14500); infrared in chloroform: 2.88; 5.93; 6.21; 6.28, 6.85 m. Soluble in 3335 parts water, more in hot water, in 5 parts pyridine; sol in acetone, in boiling alc; slightly in ether.
Melting point: mp 137°
Boiling point: bp768 344°; bp12 194°
Absorption maximum: uv max (ethanol): 247 nm (e 14500)
Derivative Type: Methyl ether
Percent Composition: C 79.62%, H 6.24%, O 14.14%
Properties: Needles, mp 49°.
Melting point: mp 49°
Derivative Type: Ethyl ether
Percent Composition: C 79.97%, H 6.71%, O 13.32%
Properties: Needles, mp 62°.
Melting point: mp 62°
Derivative Type: l-Form
Properties: Needles, mp 132°. [a]D12 -118° (c = 1.2 in acetone).
Melting point: mp 132°
Optical Rotation: [a]D12 -118° (c = 1.2 in acetone)
Derivative Type: d-Form
Properties: Needles, mp 132°. [a]D12 +120.5° (c = 1.2 in acetone).
Melting point: mp 132°
Optical Rotation: [a]D12 +120.5° (c = 1.2 in acetone)
NOTE: Not to be confused with Gum Benzoin.
Use: In organic syntheses.
产品链接: 119-53-9››