213686-58-9Relevant articles and documents
Investigation of the diastereoselectivity during the addition of an enantiomerically pure (2-lithiophenyl)acetaldehyde acetal to various imines
Wuensch, Bernhard,Nerdinger, Sven
, p. 799 - 800 (1998)
The diastereoselectivity during the addition of the homochiral (2-lithiophenyl)acetaldehyde acetal 1b to various imine components was investigated. The diastereoselectivity could be raised to 84.2% de by addition of 1b to benzylidenanisidine 2h. Removal of the tosyl and the p-methoxyphenyl protective groups of 3c, 4c and 3h/4h succeeded with sodium in liquid ammonia and ammonium cerium(IV) nitrate, respectively, to yield the enantiopure benzhydrylamines 5 and 6.
Asymmetric synthesis of 1-aryl-1,2,3,4-tetrahydroisoquinolines part 1: Addition of chiral phenylacetaldehyde acetals to acylimines
Wuensch, Bernhard,Nerdinger, Sven
, p. 8003 - 8006 (2007/10/02)
The stereoselectivity in the addition of the enantiomerically pure (2-bromophenyl)acetaldehyde acetals 3a-g to the acylimines 4a,b is investigated. Based on this reaction a novel asymmetric synthesis for the 1-phenyl-tetrahydroisoquinoline 8 is elaborated.