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Clauson–Kaas pyrrole synthesis using diverse catalysts: a transition from conventional to greener approach

Dileep Kumar Singh and Rajesh Kumar

Beilstein J. Org. Chem. 2023, 19, 928–955. https://doi.org/10.3762/bjoc.19.71

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Chemical structure [C<sub>4</sub>O<sub>4</sub>]<sup>2-</sup>

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Extracted from

Scheme 13

Chemical Information

Calculated using the Chemistry Development Kit 2.12

Property Name	Property Value
Molecular Formula	[C₄O₄]^2-
Molecular Weight	112.04 g/mol
Exact Mass	111.9797 Da
InChI	InChI=1S/C4H2O4/c5-1-2(6)4(8)3(1)7/h5-6H/p-2
InChIKey	PWEBUXCTKOWPCW-UHFFFAOYSA-L
SMILES	C1(=C(C(=O)C1=O)[O-])[O-]
Number of Atoms	8
Number of H-Bond Acceptors	4
Number of H-Bond Donors	0
Atoms in the Largest π-System	8
XLogP	0.4

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