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340235

Sigma-Aldrich

(R)-(+)-4-Methyl-4-(trichloromethyl)-2-oxetanone

98%

Synonym(s):

(R)-(+)-3-Hydroxy-3-methyl-4,4,4-trichlorobutyric acid β-lactone

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About This Item

Empirical Formula (Hill Notation):
C5H5Cl3O2
CAS Number:
Molecular Weight:
203.45
Beilstein:
5730854
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
NACRES:
NA.22

Assay

98%

optical activity

[α]26/D +6.0°, c = 2 in ethanol

bp

120 °C/0.1 mmHg (lit.)

mp

43-44 °C (lit.)

SMILES string

C[C@@]1(CC(=O)O1)C(Cl)(Cl)Cl

InChI

1S/C5H5Cl3O2/c1-4(5(6,7)8)2-3(9)10-4/h2H2,1H3/t4-/m1/s1

InChI key

MIYJBPXTAZJPGX-SCSAIBSYSA-N

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Application

(R)-(+)-4-Methyl-4-(trichloromethyl)-2-oxetanone may be used in the preparation of (S)-citramalic acid.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

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

340235-VAR:
340235-25G:
340235-BULK:
340235-5G:


Certificates of Analysis (COA)

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A highly efficient synthesis of (R)-and (S)-citramalic acid.
Staring EGJ, et al.
Rec. Trav. Chim., 105(10), 374-375 (1986)

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