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Conjugate systems in the construction of heterocycles and quaternary stereocenters
(2012-11-25)
The synthetic application of 4,5-bis-alkylidene-1,3-oxazolidin-2-ones led to the efficient
and regioselective synthesis of 2-(3H)-benzoxazolones and diarylamines with a short
methodology. They were also valuable synthons ...
Creation of quaternary stereocenters by the addition of allyltributyltin to chiral cyclic N-acyliminium ions
(Pergamon-elsevier Science LtdOxfordInglaterra, 2000)
BF3·OEt2-Catalyzed Unexpected Stereoselective Formation of 2,4-trans-Diallyl-2-methyl-6-aryltetrahydro-2H-pyrans with Quaternary Stereocenters
(American Chemical Society, 2021-05)
The present manuscript describes a convenient, mild, and highly stereoselective method for the allylation of δ-hydroxy-α,β-unsaturated ketones having a benzylic hydroxyl group at the δ-position using allyltrimethylsilane ...