- Synthesis of randomly aminated polyvinylpyrrolidone and its use in the preparation of hydrolyzable conjugates
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In this work, a versatile synthetic route to functionalize vinylpyrrolidone (VP) with protected or unprotected aliphatic primary amine groups is described for the first time. Using these monomeric precursors polyvinylpyrrolidones (PVPs) with controlled load of side amine groups randomly distributed along the chains have been prepared. These functionalized VP and PVP systems are active molecules highly desirable for further couplings, i.e. they can easily afford the simple preparation of water soluble covalent side chain conjugates onto the PVP backbone. To show the potential of this functionalization, we have prepared functionalized polymers as a controlled release delivering vehicle, employing the bactericide and preservative 2-phenoxyethanol as a hydroxyl-containing model drug. This journal is the Partner Organisations 2014.
- Prado, Anselmo Del,Navarro, Rodrigo,Gallardo, Alberto,Elvira, Carlos,Reinecke, Helmut
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- Chemoselective Transesterification of Acrylate Derivatives for Functionalized Monomer Synthesis Using a Hard Zinc Alkoxide Generation Strategy
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A new practical method for the synthesis of functionalized acrylate derivatives with the view to prepare functional polymers was explored. Hard zinc alkoxide generation enabled the highly chemoselective transesterification of acrylate derivatives over the undesired conjugate addition, which caused polymerization. The combined use of the catalytic zinc cluster Zn4(OCOCF3)6O and 4-(dimethylamino)pyridine delivered various functionalized acrylate derivatives through the transesterification of commercially available methyl acrylate derivatives with functionalized alcohols under mild conditions.
- Nakatake, Daiki,Yazaki, Ryo,Ohshima, Takashi
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supporting information
p. 3696 - 3699
(2016/08/20)
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- Soil fungi inhibiting agent
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Soil fungi-inhibiting agent containing as the active ingredient one or more of the compounds represented by the following general formula STR1 wherein I. WHEN BOTH X and Y are oxygen atoms, Z is hydrogen atom, unsubstituted alkyl group, unsubstituted alkenyl group, STR2 (in this case the compound is p-toluene sulfonate), NH2 CH2 -- (in this case the compound is p-toluene sulfonate), acyl group, ClCH2 CONH--, or alkyl group substituted by substituents such as R1 COO--, CH3 COS--, R2 O--, R2 S--, HO--, HOOC--, CH3 CONH--, acyl group, alkoxyacyl group, where R1 is lower-alkyl group or alkenyl group, R2 is lower-alkyl group or benzyl group; Ii. when X is oxygen and Y is sulfur or --NH--, Z is lower alkyl group; Iii. when X is sulfur and Y is oxygen, Z is lower-alkyl group, acetylmethyl group, methoxymethyl group, 2-methyl-1-propynyl group or nitromethyl group; Iv. when X is sulfur and Y is --NH--, Z is lower-alkyl group.
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