33989-10-5 Usage
Reaction
High yield synthesis of 2-arylbenzo[b]furans via the copper (I) catalyzed coupling of o-iodophenols and aryl acetylenes.
High yield synthesis of vinyl sulfides.
Efficient synthesis of 1,3-enynes.
Effective synthesis of 2-substituted indoles.
Synthesis of 1,4-disubstituted 5-iodotriazoles.
Selective cyclization strategy to 2-substitued benzofurans and indoles.
Copper-catalyzed cascade reaction to 2-indolyl-C-glycosides.
Check Digit Verification of cas no
The CAS Registry Mumber 33989-10-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,9,8 and 9 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 33989-10:
(7*3)+(6*3)+(5*9)+(4*8)+(3*9)+(2*1)+(1*0)=145
145 % 10 = 5
So 33989-10-5 is a valid CAS Registry Number.
33989-10-5Relevant academic research and scientific papers
Methods of 1,3-enyne preparation using copper (I) catalysts
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Page/Page column 16, (2009/01/24)
A copper(I) bi-dentate ligand complex-catalyzed procedure for synthesis of 1,3-enynes. The methods and/or systems of this invention afford a variety of enynes, tolerate a variety of sensitive functional groups, and can be employed without resort to expensive palladium reagents.
Methods and systems for preparing fused heterocyclic compounds using copper(I) catalysts
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Page/Page column 15-16, (2009/01/24)
A copper(I)-catalyzed procedure for the synthesis of benzo[b]heterocycles. This protocol can be used to synthesize a variety of 2-arylbenzo[b]furans and indoles in good to excellent yields. This method can tolerate a variety of functional groups, does not require the use of expensive additives and is palladium-free.
