4709-59-5Relevant articles and documents
Jorgenson,Patumtevapibal
, p. 489 (1970)
Synthesis of Fasicularin
Kaga, Atsushi,Tnay, Ya Lin,Chiba, Shunsuke
supporting information, p. 3506 - 3508 (2016/07/26)
The synthesis of a tricyclic marine alkaloid, fasicularin, was accomplished. Stereoselective synthesis of the aza-spirocyclic BC-ring precursor and ensuing construction of the A-ring with stereocontrolled installation of the C2 hexyl group feature prominently in the synthesis.
BF3-promoted synthesis of spiroindenyl heterocycles
Chang, Meng-Yang,Lin, Chung-Han,Chen, Yeh-Long,Hsu, Ru-Ting,Chang, Ching-Yao
scheme or table, p. 3154 - 3158 (2010/08/07)
An easy and straightforward synthesis of spiroindenyl heterocycles by the repeated treatment of boron trifluoride etherate (BF3-OEt2) is reported. The overall transformation from ketones 1 to spiro-fused indenes 3 proceeds via Wittig olefination, deconjugation, Grignard addition, and intramolecular electrophilic cyclization in moderate yields. It presents a novel rearrangement reaction catalyzed by boron trifluoride etherate and broadens the scope of application.