1585206-47-8Relevant articles and documents
Synthesis of complex dispirocyclopentanebisoxindoles via cycloaddition reactions of 4-dimethylamino-1-alkoxycarbonylmethylpyridinium bromides with 2-oxoindolin-3-ylidene derivatives
Lu, Li-Juan,Fu, Qin,Sun, Jing,Yan, Chao-Guo
, p. 2537 - 2545 (2014/04/03)
The cycloaddition reactions of 4-dimethylamino-1- alkoxycarbonylmethylpyridinium bromides with various 2-oxoindolin-3-ylidene derivatives in ethanol in the presence of triethylamine afforded the unprecedented dispirocyclopentanebisoxindole derivatives in