NAIROBI, Aug. 3 (Xinhua) -- The East African region eventually welcomed a continental football tournament after 49 years as the 2024 Africa Home Nations Championship (CHAN) co-hosted by Kenya, ...

KAMPALA, July 25 (Xinhua) -- Uganda coach Morley Byekwaso has said his team is well-prepared ahead of the CAF African Nations Championship (CHAN). Uganda, Kenya and Tanzania will co-host the ...

Mr Chan is a Certified Public Accountant. He is a former President of the Hong Kong Institute of Certified Public Accountants. Before joining the Government, Mr Chan held a number of public service ...

Mr Chan joined the Immigration Department in 1982 as an Assistant Immigration Officer. He was promoted to Assistant Director of Immigration in 2007 and Deputy Director of Immigration in 2010. He was ...

Chan–Lam C–X偶联反应在有机合成中与非常类似的 Suzuki–Miyaura’s C–C 交叉偶联反应 一样应用非常广泛。 实验技巧 一、由于催化循环需要氧气参与，因此该反应在惰性气体的保护下反应很难进行。

Chan-Lam偶联反应作为一类条件温和、高效、官能团兼容性好的偶联方法，不仅被广泛地应用于各种碳-杂键、碳-碳键的形成反应中，也成功地应用于复杂天然产物的全合成中。 Chan-Lam偶联反应机理： ...