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237817

Sigma-Aldrich

D-(−)-Pantolactone

99%

Synonym(s):

(R)-(−)-α-Hydroxy-β,β-dimethyl-γ-butyrolactone, (R)-(−)-β,β-Dimethyl-α-hydroxy-γ-butyrolactone, (R)-(−)-Pantolactone, Pantoic acid γ-lactone

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About This Item

Empirical Formula (Hill Notation):
C6H10O3
CAS Number:
599-04-2
Molecular Weight:
130.14
Beilstein:
80957
EC Number:
209-963-3
MDL number:
MFCD00005392
UNSPSC Code:
12352005
PubChem Substance ID:
24854272
NACRES:
NA.22

Quality Level

200

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.)

functional group

ester
hydroxyl

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

237817-VAR:
237817-BULK:
237817-5G:
237817-25G:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCR0126
MKCP5279
MKCQ1161
MKCN5189
MKCL4201

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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)
Total synthesis of isofregenedadiol
Kurhade SE, et al.
Organic Letters, 13(14), 3690-3693 (2011)
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)
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)
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)
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