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公开(公告)号:US20110011313A1
公开(公告)日:2011-01-20
申请号:US12504624
申请日:2009-07-16
申请人: Teng-Kuei YANG
发明人: Teng-Kuei YANG
摘要: The present invention provides a paperboard furniture, which is composed of composite paperboards comprising at least a corrugated board and paper stock covered thereon. The paperboard furniture contains a loading faceplate and a supporting rack for the loading faceplate. The supporting rack enables a plurality of composite paperboards to be assembled crosswise. The loading faceplate and supporting rack are mated by connecting. A connecting slot and troughing portion are formed at the bottom of the loading faceplate, whilst connecting portion and fins are formed on the supporting rack for mating with the connecting slot and troughing portion.
摘要翻译: 本发明提供一种纸板家具,其由至少包括瓦楞纸板和覆盖在其上的纸料的复合纸板组成。 纸板家具包含装载面板和用于装载面板的支撑架。 支撑架能够使多个复合纸板横向组装。 装载面板和支撑架通过连接配合。 连接槽和槽部形成在装载面板的底部,而连接部分和散热片形成在支撑架上,用于与连接槽和槽部配合。
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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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3.
公开(公告)号:US20110034530A1
公开(公告)日:2011-02-10
申请号:US12809705
申请日:2008-12-19
申请人: Teng-Kuei Yang , Erich Widmer
发明人: Teng-Kuei Yang , Erich Widmer
IPC分类号: A61K31/415 , C07D231/44 , A61P33/00
CPC分类号: C07D231/44
摘要: The present invention relates to a new and efficient process for preparing 5-amino-1-(2,6-dichloro-4-(trifluo-romethyl)phenyl)-4-(trifluoromethylthio)-IH-pyrazole-3-carbonitrile (hereinafter referred to as compound of formula I), which is useful as an intermediate for the antiparasitic agent fipronil, and a process for preparing 5-amino-3-cyano-1-(2,6-dichloro-4-tri-fluoromethylphenyl)-4-trifluoromethyl sulfinylpyrazole (hereinafter referred to as compound of formula II or fipronil). In one aspect, there is provided a process for preparing fipronil comprising: a) a step of reacting CF3S(═O)ONa with the compound of formula (III) in the presence of a reducing/halogenating agent; and b) a step of oxidizing the compound of formula (I) obtained in step a) in the presence of a selective oxidizing agent, under suitable conditions, wherein the selective oxidizing agent selectively effects oxidation of (I) to the corresponding sulfoxide, Fipronil. In certain exemplary embodiments, the selective oxidizing agent is MHSO5, wherein M is an alkaline metal cation.
摘要翻译: 本发明涉及一种制备5-氨基-1-(2,6-二氯-4-(三氟甲基)苯基)-4-(三氟甲硫基)-1H-吡唑-3-甲腈(以下简称为 称为式I化合物),其可用作抗寄生虫剂氟虫腈的中间体,以及制备5-氨基-3-氰基-1-(2,6-二氯-4-三氟甲基苯基) - 4-三氟甲基亚磺酰基吡唑(以下称为式II化合物或氟虫腈)。 在一个方面,提供了制备氟虫腈的方法,其包括:a)在还原/卤化剂存在下使CF 3 S(= O)ONa与式(III)化合物反应的步骤; 和b)在选择性氧化剂存在下,在合适的条件下氧化步骤a)中获得的式(I)化合物的步骤,其中选择性氧化剂选择性地将(I)氧化成相应的亚砜,氟虫腈 。 在某些示例性实施方案中,选择性氧化剂是MHSO 5,其中M是碱金属阳离子。
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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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