Photosensitive compounds for use in a method of treating a disease or condition are described. The photosensitive compounds have the formula R—Y, wherein R is a ruthenium complex and Y is at least one sulphur-containing photoreleasable group, and the compounds comprise at least one ruthenium-sulphur bond; or a pharmaceutically acceptable salt, solvate, ester or amide, such that upon influence of visible or near infra-red light (400-1400 nm) in vivo, said at least one ruthenium-sulphur bond is broken, thereby generating a pharmacologically active compound.
Development of a panchromatic photosensitizer and its application to photocatalytic CO<sub>2</sub> reduction
作者:Mari Irikura、Yusuke Tamaki、Osamu Ishitani
DOI:10.1039/d1sc04045f
日期:——
l)-2,3-dihydro-1H-benzo[d]imidazole, Os displays high potential as a panchromatic photosensitizer. Using a combination of Os and a ruthenium(II) catalyst, CO2 was photocatalytically reduced to HCOOH via irradiation with 725 nm light, and the turnover number reached 81; irradiation with light at λex > 770 nm also photocatalytically induced HCOOH formation. These results clearly indicate that Os can
我们设计并合成了一种具有两种不同三齿配体Os 的杂配锇 ( II ) 复合物。由于 S-T 跃迁,Os可以吸收可见光的整个波长范围,这得到了 TD-DFT 计算的支持。的激发锇使用任何波长的可见光生成相同的最低三重态的金属-配体电荷转移激发态,寿命其中相对较长(τ EM = 40纳秒)。由于激发的Os可以被 1,3-二甲基-2-( o-羟基苯基)-2,3-二氢-1 H-苯并[ d ]咪唑还原猝灭,Os作为全色光敏剂显示出很高的潜力。使用Os和钌( II )催化剂的组合,通过725nm光的照射,CO 2被光催化还原为HCOOH ,并且转化数达到81;用λ ex > 770 nm 的光照射也会光催化诱导 HCOOH 形成。这些结果清楚地表明Os可以用作全色氧化还原光敏剂。
Rhodium-catalyzed selective C–H functionalization of NNN tridentate chelating compounds via a rollover pathway
作者:Seung Youn Hong、Jaesung Kwak、Sukbok Chang
DOI:10.1039/c5cc09960a
日期:——
Reported herein is the first example of a Rh(NHC)-catalyzed selective bis C-H alkylation of NNN tridentate chelatingcompounds in reaction with alkenes. The observed excellent site-selectivity can readily be explained...
Polycyclic pyridines as potassium ion channel modulators
申请人:Wang Xiaodong
公开号:US20050227958A1
公开(公告)日:2005-10-13
The present invention provides a genus of polycyclic pyridines that are useful as modulators of potassium ion channels. The modulators of the invention are of use in both therapeutic and diagnostic methods.
本发明提供了一类多环吡啶,可用作钾离子通道的调节剂。该发明的调节剂在治疗和诊断方法中均有用处。
Phosphine-free pincer-ruthenium catalyzed biofuel production: high rates, yields and turnovers of solventless alcohol alkylation
ethanol with 3-methoxy benzyl alcohol. DFT studies were complementary to mechanisticstudies and indicate the β-hydride elimination step involving the extrusion of acetophenone to be the overall RDS. While the hydrogenation step is favored for the formation of α-alkylated ketone, the alcoholysis step is preferred for the formation of β-alkylated alcohol. The studies were extended for the upgradation of ethanol
合成了基于双(亚氨基)吡啶和2,6-双(苯并咪唑-2-基)吡啶配体的无膦钳式钌羰基配合物。在无溶剂条件下,在140°C下用苯甲醇将1-苯基乙醇与苄醇进行β-烷基化反应,(Cy2 NNN)RuCl 2(CO)(0.00025 mol%)与NaOH(2.5 mol%)的结合非常有效(约93%的产率,在12000 TO h -1时为37.2万吨。这是迄今为止基于钌的催化剂的最高报道值。轻松完成各种醇组合的β-烷基化反应,最终在19 000 TO h -1达到380000 TON1-苯基乙醇与3-甲氧基苄醇的β-烷基化反应。DFT研究是对机理研究的补充,并指出涉及苯乙酮挤出的β-氢化物消除步骤成为整个RDS。尽管有利于形成α-烷基化的酮的氢化步骤,但是对于形成β-烷基化的醇,醇解步骤是优选的。研究扩大了将乙醇升级为生物燃料的研究。在基于双(亚氨基)吡啶的钳-钌络合物中,(Cy2 NNN)RuCl 2(CO)提供了高生产率(在170