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417475

Sigma-Aldrich

6-Methylchromone hydrate

98%

Empirical Formula (Hill Notation):
C10H8O2 · xH2O
CAS Number:
Molecular Weight:
160.17 (anhydrous basis)
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

98%

mp

76-78 °C (lit.)

SMILES string

[H]O[H].Cc1ccc2OC=CC(=O)c2c1

InChI

1S/C10H8O2.H2O/c1-7-2-3-10-8(6-7)9(11)4-5-12-10;/h2-6H,1H3;1H2

InChI key

QWIQUUMSUBFRAX-UHFFFAOYSA-N

General description

6-Methylchromone hydrate is a chromone derivative. Chromones are cyclic compounds containing nine carbon atoms with sp2 hybridization. They are commonly referred as 1,4-benzapyranes or γ-benzopyrones.

Application

6-Methylchromone may be employed as activated alkene in the methanolic trimethylamine or sodium methoxide catalyzed Baylis-Hillman coupling reaction with aromatic and aliphatic aldehydes.

Packaging

1 g in glass bottle

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

13 - Non Combustible Solids

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Vyacheslav Ya Sosnovskikh et al.
The Journal of organic chemistry, 71(12), 4538-4543 (2006-06-06)
Polyhaloalkyl-substituted chromones, gamma-pyrones, and beta-furanones react with salicylaldehydes in the presence of piperidine to give a wide variety of fused 2H-chromenes in good yields. This novel annulation reaction presumably proceeds by a tandem intermolecular oxa-Michael addition and subsequent intramolecular Mannich...
The standard molar enthalpies of formation of chromone-3-carboxylic acid, 6-methylchromone-2-carboxylic acid, and 6-methyl-4-chromanone determined by micro-combustion calorimetry.
Flores H, et al.
Journal of Thermal Analysis and Calorimetry, 117(1), 433-437 (2014)

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