Asymmetric heck reaction of alkenyl iodides in the presence of silver salts. Catalytic asymmetric synthesis of decalin and functionalized indolizidine derivatives
Decalin derivatives3 (up to 80% ee) and indolizidine derivative 6 (up to 86% ee) have been synthesized by an asymmetric Heck reaction starting with prochiral alkenyl iodides 1 and 4, respectively. The important role of silver salts in the asymmetric Heck reaction is discussed, and the conversion of 6 to δ-coniceine (24) is also described.
A greatly improved catalytic asymmetric synthesis of the cis-decalin derivatives as well as an important role of silversalts in asymmetric Heck-type reaction is described.
描述了顺式十氢化萘衍生物的催化不对称合成以及银盐在不对称 Heck 型反应中的重要作用。
Synthesis and evaluation of a new chiral arsine ligand; 2,2′-bis(diphenylarsino)-1,1′-binaphthyl (BINAs)
Chiral 2,2'-bis(diphenylarsino)-1,1'-binaphthyl (BINAs) was synthesized and found to be an effective ligand in an alkenyl iodide-using intramolecular asymmetric Heck reaction. (C) 1997 Elsevier Science Ltd.
Further studies on a catalytic asymmetric synthesis of decalin derivatives
The decalin derivatives 2 (92% ee) and 18c (92% ee) were synthesized from the corresponding prochiral substrates 7b and 17a by an asymmetric Heck reaction.