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ALPHA-PYRONE

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ALPHA-PYRONE Basic information

Product Name:
ALPHA-PYRONE
Synonyms:
  • chloro-4’phenyl-4methyl-6phenyl-3tetrahdyro-3,4,5,6pyrone-6(3r*,4s*,6r*
  • Coumalin
  • pyran-2-one
  • 2H-PYRAN-2-ONE
  • α-pyrone
  • cumalin
  • tetrahydro-4-(4-chlorophenyl)-6-methyl-3-phenyl-,(3-alpha,4-beta,6-alpha)-2h-pyran-2-on
  • α-Pyron
CAS:
504-31-4
MF:
C5H4O2
MW:
96.08
EINECS:
207-990-5
Product Categories:
  • Building Blocks
  • Chemical Synthesis
  • Heterocyclic Building Blocks
  • Pyrans
Mol File:
504-31-4.mol
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ALPHA-PYRONE Chemical Properties

Melting point:
8-9 °C
Boiling point:
102-103 °C20 mm Hg(lit.)
Density 
1.197 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.53(lit.)
Flash point:
94 °C
storage temp. 
2-8°C
form 
Liquid
color 
Clear yellow to brown
BRN 
1511
LogP
-0.645 (est)
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Safety Information

Safety Statements 
23-24/25
WGK Germany 
3
F 
8-9-23
HS Code 
29322090

MSDS

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ALPHA-PYRONE Usage And Synthesis

Chemical Properties

clear yellow to brown liquid

Definition

ChEBI: 2H-pyran-2-one is the simplest member of the class of 2-pyranones that is 2H-pyran with an oxo substituent at position 2.

Synthesis Reference(s)

Journal of the American Chemical Society, 90, p. 2318, 1968 DOI: 10.1021/ja01011a020
Organic Syntheses, Coll. Vol. 6, p. 462, 1988

General Description

2H-Pyran-2-one (a-Pyrone) is a heterocyclic building block. Photochemistry of 2H-pyran-2-one has been investigated by laser flash photolysis with infrared detection. Ketene and a bicyclic lactone were obtained as major photoproducts.

Purification Methods

Dissolve -pyrone in Et2O, wash it with brine, dry (Na2SO4), f

ALPHA-PYRONESupplier

Shanghai Xingui Biotechnology Co., Ltd. Gold
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J & K SCIENTIFIC LTD.
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010-82848833 400-666-7788
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TCI (Shanghai) Development Co., Ltd.
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021-67121386
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Beijing Ouhe Technology Co., Ltd
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010-82967028 13552068683
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2355560935@qq.com
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