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Sigma-Aldrich

D-(−)-Pantolactone

99%

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Synonym(s):
(R)-(−)-α-Hydroxy-β,β-dimethyl-γ-butyrolactone, (R)-(−)-β,β-Dimethyl-α-hydroxy-γ-butyrolactone, (R)-(−)-Pantolactone, Pantoic acid γ-lactone
Empirical Formula (Hill Notation):
C6H10O3
CAS Number:
599-04-2
Molecular Weight:
130.14
Beilstein:
80957
EC Number:
209-963-3
MDL number:
MFCD00005392
PubChem Substance ID:
24854272
NACRES:
NA.22

Assay

99%

form

solid

optical activity

[α]25/D −49.8°, c = 2 in H2O

bp

120-122 °C/15 mmHg (lit.)

mp

91 °C (lit.)

SMILES string

CC1(C)COC(=O)[C@@H]1O

InChI

1S/C6H10O3/c1-6(2)3-9-5(8)4(6)7/h4,7H,3H2,1-2H3/t4-/m0/s1

InChI key

SERHXTVXHNVDKA-BYPYZUCNSA-N

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Application

D-(-)-Pantolactone is a chiral auxiliary used in many asymmetric synthesis reactions.
It can be used as a chiral starting material to synthesize:
  • An insect sex pheromone named 1S,2S,3R-1-acetoxymethyl-2,3,4,4-tetrameth-ylcyclopentane.
  • (-)-Enantiomer of (R)-8-hydroxy-4,7,7-trimethyl-7,8-dihydrocyclopenta[e]isoindole-1,3(2H,6H)-dione, a norsesquiterpene alkaloid.
  • A bicyclic diterpene named isofregenedadiol.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H319

Hazard Classifications

Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Diastereoface-discriminative metal coordination in asymmetric synthesis: d-pantolactone as practical chiral auxiliary for Lewis acid catalyzed Diels-Alder reactions
Poll T, et al.
Tetrahedron Letters, 26(26), 3095-3098 (1985)
Total synthesis of an anticancer norsesquiterpene alkaloid isolated from the fungus Flammulina velutipes
Kashinath K, et al.
Organic & Biomolecular Chemistry, 12(24), 4098-4103 (2014)
Matthew B Kubilius et al.
ACS omega, 2(11), 8308-8312 (2017-11-21)
1-Ethyl-3-[3-dimethylaminopropyl]carbodiimide (EDC) is a commonly used reagent for bioconjugation and peptide synthesis. Both EDC and the corresponding urea derivative, 1-(3-dimethylaminopropyl)-3-ethylurea (EDU), are achiral. As the reagent is active in aqueous solutions, it is a common choice for the study of
Enantiospecific synthesis of sex pheromone of the obscure mealybug from pantolactone via tandem conjugate addition/cyclization
Hajare AK, et al.
Tetrahedron Letters, 51(40), 5291-5293 (2010)
Asymmetric diels alder reactions and michael type additions with 6 (R)-3′(R)-Pantolactone-substituted-2H-pyran-3 (6H)-one.
Knol J, et al.
Tetrahedron Letters, 32(50), 7465-7468 (1991)
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