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About This Item
Empirical Formula (Hill Notation):
C7H6N4S
CAS Number:
Molecular Weight:
178.21
UNSPSC Code:
12352005
NACRES:
NA.22
PubChem Substance ID:
EC Number:
228-183-4
Beilstein/REAXYS Number:
609349
MDL number:
Assay:
≥95.0% (S)
Form:
powder
Product Name
1,1′-Thiocarbonyldiimidazole, ≥95.0% (S)
InChI key
RAFNCPHFRHZCPS-UHFFFAOYSA-N
InChI
1S/C7H6N4S/c12-7(10-3-1-8-5-10)11-4-2-9-6-11/h1-6H
SMILES string
S=C(n1ccnc1)n2ccnc2
assay
≥95.0% (S)
form
powder
reaction suitability
reaction type: Carbonylations
mp
98-102 °C (lit.)
functional group
thiourea
storage temp.
2-8°C
Quality Level
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Application
- 1,1′-Thiocarbonyldiimidazole (TCDI) is generally used as a reagent to carry out the deoxygenation of vicinal diols by forming cyclic thionocarbonate in Corey-Winter alkene synthesis.
- It is used as a reagent in the enantioselective total synthesis of (+)-hapalindole Q, 12-epi-fischerindole U and welwitindolinone A.
- It is also used in the preparation of trithiocarbonates, xanthates, and dithiocarbamates as chain transfer agents for the reversible addition fragmentation chain transfer and macromolecular design (RAFT/ MADIX) polymerization.
Other Notes
Reagent for the synthesis of thioamides; Used in a modified Corey-Winter olefin synthesis; Preparation of thiocarbamates from alcohols which undergo radical reactions with Bu3SnH-AIBN
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Enantiospecific total synthesis of the hapalindoles, fischerindoles, and welwitindolinones via a redox economic approach.
Richter JM, et al.
Journal of the American Chemical Society, 130(52), 17938-17954 (2008)
1, 1?-Thiocarbonyldiimidazole.
e-EROS Encyclopedia of Reagents for Organic Synthesis (2001)
Direct coupling of indoles with carbonyl compounds: short, enantioselective, gram-scale synthetic entry into the hapalindole and fischerindole alkaloid families.
Baran PS and Richter JM
Journal of the American Chemical Society, 126(24), 7450-7451 (2004)
S. Hanessian et al.
Canadian Journal of Chemistry, 65, 1859-1859 (1987)
E. Vedejs et al.
Tetrahedron Letters, 3793-3793 (1973)
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