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Merck
CN

D60400

2,3-Dichloro-5,6-dicyano-p-benzoquinone

98%

Synonym(s):

4,5-Dichloro-3,6-dioxo-1,4-cyclohexadiene-1,2-dicarbonitrile, DDQ

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About This Item

Empirical Formula (Hill Notation):
C8Cl2N2O2
CAS Number:
84-58-2
Molecular Weight:
227.00
UNSPSC Code:
12352117
NACRES:
NA.22
PubChem Substance ID:
24893996
EC Number:
201-542-2
Beilstein/REAXYS Number:
747939
MDL number:
MFCD00001593
Assay:
98%
Form:
powder

Key Documents

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Quality Level

200

assay

98%

form

powder

reaction suitability

reagent type: oxidant

mp

210-215 °C (dec.) (lit.)

storage temp.

2-8°C

SMILES string

ClC1=C(Cl)C(=O)C(C#N)=C(C#N)C1=O

InChI

1S/C8Cl2N2O2/c9-5-6(10)8(14)4(2-12)3(1-11)7(5)13

InChI key

HZNVUJQVZSTENZ-UHFFFAOYSA-N

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Application

2,3-Dichloro-5,6-dicyano-p-benzoquinone (DDQ) can be used as:
  • A deprotecting reagent for a variety of compounds, such as thioacetals, acetals, and ketals.
  • An electron-transfer reagent for the synthesis of quinolines from imines and alkynes or alkenes.
  • An effective reagent for the benzylic and allylic C−H functionalization.
  • An oxidizing agent for the synthesis of functionalized furans and benzofurans.
  • A reagent with Ph3P in an efficient synthesis of 1,2-benzisoxazoles.

pictograms

Skull and crossbones
GHS06

signalword

Danger

hcodes

H301

Hazard Classifications

Acute Tox. 3 Oral

supp_hazards

EUH029

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Regulatory Information

危险化学品

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Certificates of Analysis (COA)

Lot/Batch Number
0000495547
0000496452
0000496452
0000495547
BCCN4067

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Deprotection of benzyl ethers using 2, 3-dichloro-5, 6-dicyano-p-benzoquinone (DDQ) under photoirradiation.
Rahim MA, et al.
Tetrahedron Letters, 46(43), 7307-7309 (2005)
Solvent-Free One-Step Photochemical Hydroxylation of Benzene Derivatives by the Singlet Excited State of 2, 3-Dichloro-5, 6-dicyano-p-benzoquinone Acting as a Super Oxidant.
Ohkubo K, et al.
Chemistry?A European Journal , 21(7), 2855-2861 (2015)
Ayse Kocabalkanli et al.
Farmaco (Societa chimica italiana : 1989), 57(12), 993-997 (2003-02-05)
Nucleosides have been of great interest since their strong antiviral activities were discovered. 1,3-Oxathiolane ring system has been known for many years, but it is in recent years that the ring has been used as the sugar ring in nucleoside
DDQ-mediated formation of carbon? carbon bonds: Oxidation of imines
Bortolotti B, et al.
Tetrahedron, 49, 10157-10157 (1993)
Predictive model for oxidative C-H bond functionalization reactivity with 2, 3-dichloro-5, 6-dicyano-1, 4-benzoquinone.
Morales-Rivera CA, et al.
Journal of the American Chemical Society, 139(49), 17935-17944 (2017)
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Global Trade Item Number

SKUGTIN
D60400-250MG04061833261453
D60400-10G04061835556564
D60400-100G04061833587195
D60400-5G04061833587201

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