1000979-81-6Relevant articles and documents
Asymmetric allylation of sulfonyl imines catalyzed by in situ generated Cu(II) complexes of chiral amino alcohol based Schiff bases
Ghosh, Debashis,Bera, Prasanta Kumar,Kumar, Manish,Abdi, Sayed H. R.,Khan, Noor-Ul H.,Kureshy, Rukhsana I.,Bajaj, Hari C.
, p. 56424 - 56433 (2015/01/16)
A catalytic route for enantioselective synthesis of homoallyl amines through Cu(II)-Schiff base catalyzed reaction of allyltin with aryl, alkenyl-substituted N-sulfonylimines is described. The allylation reaction is promoted by a simple in situ generated Cu(II )-amino alcohol based Schiff base complex. The addition of allyltin to aldimines delivers the desired products up to 90% yield and 98% enantiomeric excess (ee). Based on experimental observations a probable mechanism was proposed for this reaction. The current methodology was extended to the synthesis of b-phenylalanine in good yield and very good enantioselectivity.
A convenient synthetic route to enantiopure N-tosylazetidines from α-amino acids
Ghorai, Manas K.,Das, Kalpataru,Kumar, Amit
, p. 2471 - 2475 (2007/10/03)
A general and convenient synthetic route to various chiral 2-substituted- and 2,4-disubstituted-N-tosylazetidines (ee >99%) is described in good overall yields starting from chiral α-amino acids using very simple chemistry.
Lewis acid-mediated unprecedented ring-opening rearrangement of 2-Aryl-N-tosylazetidines to enantiopure (E)-allylamines
Ghorai, Manas K.,Kumar, Amit,Das, Kalpataru
, p. 5441 - 5444 (2008/09/18)
A highly efficient strategy for Cu(OTf)2-mediated ring-opening of 2-aryl-N-Mosylazetidines in polar and coordinating solvents followed by an unprecedented rearrangement to substituted achiral and chiral (E)-allylamines (ee >99%) is reported. Th