1. delta-Valerolactone (542-28-9)

For being one kind of clear colorless to pale yellow liquid, delta-Valerolactone (542-28-9) has the Molecular Formula of C₅H₈O₂ and Molecular Weight of 100.12. When comes to the solubility, it is miscible in water. delta-Valerolactone has other synonyms of Tetrahydro-2H-2-pyranone; 5-Valerolactone.

2. Molecular structure Data of delta-Valerolactone (542-28-9)

The Molecular structure Data of delta-Valerolactone are as below:
(1)molar refraction: 24.79;
(2)molar volume (m3/mol): 93.9;
(3)parachor (90.2K): 226.1;
(4)surface tension (dyne/cm): 33.4;
(5)polarizability (10-24cm3): 9.82.

3. delta-Valerolactone synthesis

As the delta-Valerolactone synthesis, it could be produced through the following methods:

1). Have the cyclopentanone treated with benzylhydroperoxide, to produce delta-Valerolactone.
2). Prepare the ω-phenoxy(yl)propylpropanedioate and hydroiodic acid and then heat to have sodium 5-iodopentanoate, and then heat the by-product sodium 5-iodopentanoate to have delta-Valerolactone.
3). Have the reduction of glutaric anhydride with Sodium or sodium amalgam, in the existence of alcohol.

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