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Garcia, P., Moulin, S., Miclo, Y., Leboeuf, D., Gandon, V., Aubert, C. and Malacria, M. (2009) Synthesis of Tricyclic Fused 3-Aminopyridines through Intramolecular Co-I-Catalyzed [2 + 2 + 2] Cycloaddition between Ynamides, Nitriles, and Alkynes. Chemistry—A European Journal, 15, 2129-2139.
https://doi.org/10.1002/chem.200802301

has been cited by the following article:

• TITLE: Rhodium Catalyzed [2π + 2π + 2π]-Cycloaddition of Alkynyl-Ynamides and Carbon Disulfide to Indolo-Thiopyrane Thiones

  AUTHORS: Benjamin Dassonneville, Felix Hinkel, Heiner Detert

  KEYWORDS: Cycloaddition, Heterocycles, Rhodium, Sulfur, Alkyne

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.13 No.1, March 14, 2023

  ABSTRACT: The synthesis of new indoloannulated thiopyranethiones is reported. The key-step is a rhodium-catalyzed [2 + 2 + 2]-cycloaddition of alkynyl-ynamides with carbon disulfide to close the pyrrole and the thiopyranethione rings simultaneously. A violet idolothiopyrane thione or a mixture of the violet and a red isomer result from [RhCl(C8H14)2]2/3BINAP catalyzed cycloadditions, the regiochemistry is controlled by the substitution pattern on the alkynyl-ynamide.