314280-28-9Relevant articles and documents
An efficient route for the allylation of arylaldehydes to give enantiopure homoallylic alcohols
Thorat, Prashant B.,Goswami, Santosh V.,Bhusare, Sudhakar R.
, p. 1324 - 1330 (2013/11/19)
An efficient asymmetric synthesis of homoallylic alcohols is described by the allylation of carbonyl compounds using organocatalysts as chiral directors in the presence of tin metal. The effect of chiral environment is also studied on the allylation reactions. This method allows us to obtain two different enantiomers of homoallylic alcohol in the presence of the corresponding chiral compound. The protocol is applied to various aldehydes to obtain high yields and excellent enantioselectivities for the corresponding homoallylic alcohols.
Chemoenzymatic synthesis of optically active heterocyclic homoallylic and homopropargylic alcohols
Singh, Satwinder,Kumar, Subodh,Chimni, Swapandeep Singh
, p. 2679 - 2687 (2007/10/03)
A chemoenzymatic methodology has been developed using indium-mediated allylation of heterocyclic aldehydes under aqueous conditions followed by Pseudomonas cepacia lipase-catalyzed enantioselective acylation of racemic homoallylic and homopropargylic alcohols in organic media. It is observed that the lipase immobilized on ceramic particles (PS-C Amano II) catalyzes the resolution in a highly enantioselective manner in less time as compared to the native enzyme (PS Amano). The approach provides new functionalized chiral synthons useful in the synthesis of natural and pseudonatural products.
A short and efficient synthesis of unnatural (R)-nicotine
Girard,Robins,Villieras,Lebreton
, p. 9245 - 9249 (2007/10/03)
A short and efficient synthesis of unnatural (R)-nicotine is described, in which the key step is an intramolecular hydroboration-cycloalkylation of an azido-olefin intermediate. The synthesis is achieved in only four steps, with an overall yield of 51% (or in six steps with an overall yield of 65%). (C) 2000 Elsevier Science Ltd.