PRV-LS催化2,3-二溴-3-苯基丙酸乙酯脱溴反应(Ⅱ)

Studies on the Debromination of Ethyl 23-Dibromo-3- Phenylpropionate Using Polyalkylviologen-Lauryl Sulfate Complexes as Electron-Transfer Catalystdl)

研究了以连二亚硫酸钠作还原剂、聚烷基紫精-十二烷基硫酸根复合物(PRV-LS)作电子转移剂于杂相条件[Na_2S_2O_4(水)-PRV-LS-PhCHBrCHBrCOOEt(二氯甲烷)]催化2,3-二溴-3-苯基丙酸乙酯的脱溴反应。结果表明:PRV-LS特别是聚丁基紫精-十二烷基硫酸根复合物(PBV-LS)具有良好的诱导PhCHBrCHBrCOOEt脱溴能力。

The debromination of ethyl 2.3-dibromo-3-phenylpropionate (PhCHBrCHBr-COOEt) by sodium dithionite (Na2S2O4) using polyalkyl viologen-lauryl sulfate complexes (PRV-LS) as Electron-transfer catalys (ETC) was studied under heterophase condition [ Na2S2O4(in H2O)-PRV-LS-PhCHBrCHBrCOOEt (in CH2C12)] . The results show that PRV-LS, especially polybutylviologen-lauryl sulfide complex (PBV-LS), have good abilities to induce the debromination of PhCHBrCHBrCOOEt under mild conditions.