Method of producing an o-disubstituted aromatic compound, and method of producing a monosubstituted-monohaloaromatic compound
申请人:Yoshida Jun-ichi
公开号:US20080194816A1
公开(公告)日:2008-08-14
A method of producing an o-disubstituted aromatic compound, containing: continuously conducting at least the following steps (a) to (d):
(a) a step of mono-lithiating one halogen atom of an o-dihaloaromatic compound, using a first microreactor;
(b) a step of making the thus-obtained monolithiated product to react with an electrophilic compound, using a second microreactor, to obtain a monosubstituted-monohaloaromatic compound;
(c) a step of lithiating the other halogen atom of the o-dihaloaromatic compound, using a third microreactor; and
(d) a step of making the thus-obtained lithiated product successively to react with an electrophilic compound, using a forth microreactor.
Fluoro-ketones. V reaction of alkyl and aryllithium compunds with perfluoroalkylether esters
作者:Loomis S. Chen、Christ Tamborski
DOI:10.1016/s0022-1139(00)85237-9
日期:1981.11
variety of aryllithiumcompounds have been shown to react with a perfluoroalkylether ester (RfORfCO2R) at −78°C to produce perfluoroalkylether ketones. In the absence of competing reactions, which may be due to additional reactive groups on the ester, high yields of ketones can be prepared. Steric hindrance adjacent to the carbonyl group has an important effect on rates of reactions. Low reaction temperature
已显示正丁基锂和各种芳基锂化合物在-78°C下与全氟烷基醚酯(R f OR f CO 2 R)反应生成全氟烷基醚酮。在没有竞争反应的情况下(可能由于酯上的其他反应性基团),可以制备高产率的酮。与羰基相邻的立体位阻对反应速率有重要影响。使用仲酸酯时,低反应温度为-78°C是重要因素。在较高的反应温度≥30℃下,由于半缩酮的中间锂盐的不稳定性分解成芳基酯和全氟烯烃,仲酯产生的酮的产率降低。
Cathepsin cysteine protease inhibitors
申请人:——
公开号:US20030232863A1
公开(公告)日:2003-12-18
This invention relates to a novel class of compounds which are cysteine protease inhibitors, including but not limited to, inhibitors of cathepsins K, L, S and B. These compounds are useful for treating diseases in which inhibition of bone resorption is indicated, such as osteoporosis.
Spermicidal and/or antifungal composition and methods of using the same
申请人:Research Triangle Institute
公开号:US20040147539A1
公开(公告)日:2004-07-29
Hexahydroindenopyridine compounds are provided which act as spermicides and/or fungicides, spermicidal and/or fungicidal compositions containing the same, and methods for killing motile sperm and/or fungi using the compounds and compositions.
[EN] CATHEPSIN CYSTEINE PROTEASE INHIBITORS<br/>[FR] INHIBITEURS DE CATHEPSINE CYSTEINE PROTEASE
申请人:MERCK FROSST CANADA INC
公开号:WO2003075836A2
公开(公告)日:2003-09-18
This invention relates to a novel class of compounds which are cysteine protease inhibitors, including but not limited to, inhibitors of cathepsins K, L, S and B. These compounds are useful for treating diseases in which inhibition of bone resorption is indicated, such as osteoporosis.