HBr/HOAc是酸解脱除苄氧羰基的最常用的试剂。脱除反应主要按下式进行。反应需要消耗2分子的HBr,Cbz的脱除速度随HBr浓度的增大而增大,因此实际上都是采用高浓度的过量HBr/HOAc溶液(1.2M-3.3M)以保证反应的完全。 含有丝氨酸和苏氨酸的肽或其它含羟基的氨基衍生物用HBr/HOAc脱除Cbz时会发生羟基的O-乙酰化反应。虽然...
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What is the major product of 2-methyl-2-pentene with HBr?What would the major product be for cis-3-hexene and HBr?How will you preapre the following compound starting with an alkyl halide?What is the product formed when HBr is added to 1-butene?
Product Name2,2',3,3',4,4',5,5',6-nonabromodiphenylether CAS63387-28-0 CBNumberCB21433272 MFC12HBr9O MW880.27 EINECS208-759-1 MDL NumberMFCD01941099 MOL File63387-28-0.molChemical Properties Flash point -12 °C storage temp. 2-8°C solubility Chloroform (Slightly), Methanol (...
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It provides vapor-liquid equilibrium data for State: Two-component system, single-phase liquid or two-phase liquid-liquid in equilibrium with vapor Pure component 1: C 4 H 10 O Diethyl ether [60-29-7], liquid in equilibrium with vapor Pure component 2: C 2 HBrClF 3 Bromochloro-1,1,1...
◼ 醚键可被 HI 和HBr 在加热下断裂 HX R O R R X + HO R HX过量时,生成 X = I, Br 2分子卤代烷 9/38 例: H I H 3 C H 3 C C H I + C H O H H3 C CH3 H 3 C H 3 C CH O CH H3 C CH3 H I (过量) H 3 C 2 C H I H 3 C 4 8 % HBr(...
Which compound has the highest boiling point? HF, HI, HBr, HCl, or F2? What is acetone's melting point? What is the hydrocarbon dew point? What is the boiling point of glass? Which chemical element has the highest boiling point?
有机化学 醚ether思维导图
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