Skip to Content
Merck
All Photos(1)

Key Documents

922668

Sigma-Aldrich

Dichloromeldrum′s acid

≥95%

Synonym(s):

5,5-Dichloro-2,2-dimethyl-1,3-dioxane-4,6-dione, DiCMA, Lennox-Heard chloroacetylation reagent

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C6H6Cl2O4
CAS Number:
Molecular Weight:
213.02
UNSPSC Code:
12352106
NACRES:
NA.22

Quality Level

Assay

≥95%

form

chunks

mp

51-54 °C

functional group

chloro
ester
ketal

Application

Lennox-Heard reagent (also known as dichloromeldrum′s acid, or DiCMA) is a stable, shelf-stable reagent for the conversion of alkyl and aryl amines to dichloroacetamides. This reagent is atom economical and the byproducts of acetone and CO2 are easily removed, and provides a greener, practical method of installing these medicinally relevant motifs onto a variety of compounds in high yield.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Sorry, we don't have COAs for this product available online at this time.

If you need assistance, please contact Customer Support.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

David M Heard et al.
Organic letters, 23(9), 3368-3372 (2021-04-13)
Dichloromeldrum's acid is introduced as a bench-stable, nonvolatile reagent for the dichloroacetylation of anilines and alkyl amines to produce α,α-dichloroacetamides, which are important motifs for medicinal chemistry. Products are formed in good to excellent yields with reagent grade solvents, and

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service