Article citationsMore>>

Kase, K., Goswami, A., Ohtaki, K., Tanabe, E., Saino, N. and Okamoto, S. (2007) On-Demand Generation of an Efficient Catalyst for Pyridine Formation from Unactivated Nitriles and α,ω-Diynes Using CoCl2-6H2O, Dppe, and Zn. Organic Letters, 9, 931-934.
https://doi.org/10.1021/ol070037p

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.