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2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (or DDQ) is the chemical reagent with formula C 6 Cl 2 (CN) 2 O 2. This oxidant is useful for the dehydrogenation of alcohols, [3] phenols, [4] and steroid ketones. [5] DDQ decomposes in water, but is stable in aqueous mineral acid. [6]
A private mail bag (PMB), locked bag or caller service is a term for a special form of postal delivery in some countries, usually a government department or large private company, which receive large volumes of mail. Private mail bag addresses are often used in countries in Africa where there may be no street delivery service.
Executive Outcomes is a private military company (PMC) founded in South Africa in 1989 by Eeben Barlow, a former lieutenant-colonel of the South African Defence Force. It later became part of the South African-based holding company Strategic Resource Corporation. [ 2 ]
The use of protective groups is pervasive but not without criticism. [103] In practical terms their use adds two steps (protection-deprotection sequence) to a synthesis, either or both of which can dramatically lower chemical yield. Crucially, added complexity impedes the use of synthetic total synthesis in drug discovery.
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The African Finance Journal is a peer-reviewed academic journal covering finance, accounting, and economics in an African context. The African Finance Journal (AFJ) is published twice a year and edited at Africagrowth Institute. [1] The journal is jointly published by the institute, University of Cape Town and the African Finance Association ...
The Financial Services Board (FSB) was the government of South Africa's financial regulatory agency responsible for the non-banking financial services industry in South Africa from 1990 to 2018. On 1 April 2018, its responsibilities were split into two new agencies the Financial Sector Conduct Authority (FSCA) for conduct regulation and the ...
Pietermaritzburg is popularly called Maritzburg and is often informally abbreviated to PMB. It is a regionally important industrial hub, producing aluminium, timber and dairy products, as well as the main economic hub of uMgungundlovu District Municipality. The public sector is a major employer in the city due to local, district and provincial ...