Rhodium Catalyzed [2π + 2π + 2π]-Cycloaddition of Alkynyl-Ynamides and Carbon Disulfide to Indolo-Thiopyrane Thiones
نویسندگان
چکیده
The synthesis of new indoloannulated thiopyranethiones is reported. key-step a rhodium-catalyzed [2 + 2 2]-cycloaddition alkynyl-ynamides with carbon disulfide to close the pyrrole and thiopyranethione rings simultaneously. A violet idolothiopyrane thione or mixture red isomer result from [RhCl(C8H14)2]2/3BINAP catalyzed cycloadditions, regiochemistry controlled by substitution pattern on alkynyl-ynamide.
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ژورنال
عنوان ژورنال: International Journal of Organic Chemistry
سال: 2023
ISSN: ['2161-4695', '2161-4687']
DOI: https://doi.org/10.4236/ijoc.2023.131003