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1-ethyl-3-methylimidazolium trifluoromethanesulfonate 1

Amino-modified 1

Raman spectroscopy 1

amino-modified 1

amoxicillin 1

crystal transformation 1

crystallization 1

dimethyl sulfoxide 1

economic evaluation 1

efficient 1

extraction distillation 1

gravimetric 1

methyl acetate 1

penicillin sulfoxide 1

polymorphism 1

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Polymorphism and crystal transformation of penicillin sulfoxide

Dingding JING, Yongli WANG, Zhijian CHEN, Lina ZHOU, Jingkang WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4, Pages 442-447 doi: 10.1007/s11705-011-1140-x

Abstract: Penicillin sulfoxide is the intermediate for the synthesis of 7-amino-3-desacetoxycephalosporanic acidIn this contribution, two crystal structures of penicillin sulfoxide (forms I and II) were determinedThe results indicate that penicillin sulfoxide is more stable as form I, and the temperature plays an

Keywords： penicillin sulfoxide crystallization polymorphism crystal transformation Raman spectroscopy

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Immobilization of penicillin G acylase onto amino-modified silica hydrogel

Weibing Dong, Huining HE, Junbo Gong, Victor C. YANG,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1, Pages 87-90 doi: 10.1007/s11705-009-0298-y

Abstract: Penicillin G acylase (PGA), a model enzyme, was covalently immobilized onto the N-MSHG and then was used

Keywords： gravimetric amino-modified efficient Amino-modified amoxicillin

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Methyl acetate–methanol mixture separation by extractive distillation: Economic aspects

Elena Graczová, Branislav Šulgan, Samuel Barabas, Pavol Steltenpohl

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4, Pages 670-682 doi: 10.1007/s11705-018-1769-9

Abstract: Dimethyl sulfoxide was the second extraction solvent selected.As high purity of dimethyl sulfoxide was required for the methyl acetate-methanol azeotrope breaking,

Keywords： methyl acetate 1-ethyl-3-methylimidazolium trifluoromethanesulfonate extraction distillation dimethyl sulfoxide