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公开(公告)号:US06861536B2
公开(公告)日:2005-03-01
申请号:US10039557
申请日:2002-01-08
申请人: Teng-Kuei Yang , Nan-Kuang Chen , To Liu
发明人: Teng-Kuei Yang , Nan-Kuang Chen , To Liu
IPC分类号: C07C327/30 , C07D295/088 , C07D207/04
CPC分类号: C07D295/088 , C07C327/30
摘要: The present invention discloses an aminothiol compound having a general formula I wherein R1-R5 are substitutable ligands. Such compounds can perform as superior catalysts in asymmetric addition reactions of organic zinc and aldehyde. According to the present invention, the compounds is needed only less than 0.02% of main reactants to obtain enantioselectivity higher than 99% enantiomeric excess, whereby the asymmetric reactions can become very economic.
摘要翻译: 本发明公开了具有通式I的氨基硫醇化合物,其中R 1 -R 5是可取代的配体。 这种化合物可以在有机锌和醛的不对称加成反应中作为优异的催化剂。 根据本发明,化合物仅需要少于0.02%的主要反应物,以获得高于99%对映异构体过量的对映体选择性,由此不对称反应可变得非常经济。
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公开(公告)号:US06965038B2
公开(公告)日:2005-11-15
申请号:US10650020
申请日:2003-08-26
申请人: Teng-Kuei Yang , Nan-Kuang Chen , To Liu
发明人: Teng-Kuei Yang , Nan-Kuang Chen , To Liu
IPC分类号: C07C327/30 , C07D295/088 , C07D207/04
CPC分类号: C07D295/088 , C07C327/30
摘要: The present invention discloses an acylated derivative of an aminothiol compound having a general formula II wherein R1-R4 and R6 are substitutable ligands. Such compounds can perform as superior catalysts in asymmetric addition reactions of organic zinc and aldehyde. According to the present invention, only less than 0.02% of the acylated derivative is needed to obtain high enantioselectivity over 99% enantiomeric excess.
摘要翻译: 本发明公开了具有通式II的氨基硫醇化合物的酰化衍生物,其中R 1至R 4和R 6是可取代的配体。 这种化合物可以在有机锌和醛的不对称加成反应中作为优异的催化剂。 根据本发明,只有少于0.02%的酰化衍生物才能获得超过99%对映体过量的高对映体选择性。
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公开(公告)号:US07335781B2
公开(公告)日:2008-02-26
申请号:US10807710
申请日:2004-03-23
申请人: Teng-Kuei Yang , Shi-Liang Tseng , To Liu , Nan-Kuang Chen
发明人: Teng-Kuei Yang , Shi-Liang Tseng , To Liu , Nan-Kuang Chen
IPC分类号: C07D207/04
CPC分类号: C07C327/30 , C07D295/088
摘要: The present invention discloses an aminothiol compound having a general formula I wherein R1-R5 are substitutable ligands. Such compound can perform as a superior catalyst in an asymmetric addition reaction of organic metal compounds and aldehyde. According to the present invention, the aminothiol compound is needed only less than 0.02% based on main reactants to obtain enantioselectivity higher than 98% enantiomeric excess, whereby the asymmetric reactions can become very economic.
摘要翻译: 本发明公开了具有通式I的氨基硫醇化合物,其中R 1 -R 5是可取代的配体。 这种化合物可以在有机金属化合物和醛的不对称加成反应中作为优异的催化剂。 根据本发明,基于主要反应物,氨基硫醇化合物仅需要小于0.02%,以获得高于98%对映体过量的对映体选择性,由此不对称反应可变得非常经济。
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