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The tert-butyloxycarbonyl protecting group or tert-butoxycarbonyl protecting group [1] ( BOC group) is an acid -labile protecting group used in organic synthesis . The BOC group can be added to amines under aqueous conditions using di- tert -butyl dicarbonate in the presence of a base such as sodium hydroxide :
Di-tert-butyl dicarbonate is a reagent widely used in organic synthesis. [ 1] Since this compound can be regarded formally as the acid anhydride derived from a tert -butoxycarbonyl (Boc) group, it is commonly referred to as Boc anhydride. This pyrocarbonate reacts with amines to give N - tert -butoxycarbonyl or so-called Boc derivatives.
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The Bank of China ( BOC; Chinese: 中国银行; pinyin: Zhōngguó Yínháng; Portuguese: Banco da China) is a Chinese majority owned commercial bank headquartered in Beijing and one of the largest banks in the world. The Bank of China was formed in 1912 by renaming the Qing dynasty 's Da-Qing Bank (est. 1905) under the newly established ...
A form of government where the monarch is elected, a modern example being the King of Cambodia, who is chosen by the Royal Council of the Throne; Vatican City is also often considered a modern elective monarchy. Self-proclaimed monarchy: A form of government where the monarch claims a monarch title without a nexus to the previous monarch dynasty.
Bank of China (Hong Kong) is a listed company of the Stock Exchange of Hong Kong, via its parent company BOC Hong Kong (Holdings) Limited (BOCHK Holdings). The holding owned 100% shares of the bank. Moreover, American depositary receipt of the shares of the holdings, were traded on OTC Market . BOCHK Holdings is a constituent of the Hang Seng ...
BOC-3. A - Process Agent Service [clarification needed] is a United States federal filing that designates legal agents upon which process may be served. It pertains mostly to individuals or companies in the transportation and logistics industry, and it is often required before certain federal operating authorities can be granted within the ...
Website. www .boc .lk. A branch of the bank in Kandy. Bank of Ceylon ( BOC; Sinhala: ලංකා බැංකුව Lanka Bænkuwa, Tamil: இலங்கை வங்கி Ilangai Vangi) is a state-owned, major commercial bank in Sri Lanka. Its head office is located in an iconic cylindrical building in Colombo . The bank has a network of ...