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xyhua

木虫 (小有名气)

[交流] 请问m-PCBA是个什么化合物?

请问m-PCBA是个什么化合物?
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lzhiping

至尊木虫 (职业作家)

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楼上的兄弟可能错了。可能是间氯过氧苯甲酸。
[937-14-4]  · C7H5ClO3  · m-Chloroperbenzoic Acid  · (MW 172.57)

(electrophilic reagent capable of reacting with many functional groups; delivers oxygen to alkenes, sulfides, selenides, and amines)

Alternate Name: m-CPBA; MCPBA.

Physical Data: mp 92-94 °C.

Solubility: sol CH2Cl2, CHCl3, 1,2-dichloroethane, ethyl acetate, benzene, and ether; slightly sol hexane; insol H2O.

Form Supplied in: white powder, available with purity of 50%, 85%, and 98% (the rest is 3-chlorobenzoic acid and water).

Analysis of Reagent Purity: iodometry.2

Purification: commercial material (purity 85%) is washed with a phosphate buffer of pH 7.5 and dried under reduced pressure to furnish reagent with purity >99%.3

Handling, Storage, and Precautions: pure m-CPBA is shock sensitive and can deflagrate;4 potentially explosive, and care is required while carrying out the reactions and during workup.5 Store in polyethylene containers under refrigeration.

[ Last edited by lzhiping on 2007-9-17 at 15:24 ]
3楼2007-09-17 15:17:29
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