[EN] IMPROVED CORROSION AND MICROBIAL CONTROL IN HYDROCARBONACEOUS COMPOSITIONS [FR] CONTRÔLE AMÉLIORÉ DE LA CORROSION ET MICROBIEN DANS DES COMPOSITIONS HYDROCARBONÉES
Fast Nitroaldol Reaction Using Powdered KOH in Dry Media
作者:Roberto Ballini、Giovanna Bosica、Mauro Parrini
DOI:10.1246/cl.1999.1105
日期:1999.10
β-Nitroalkanols are easily obtained within a few minutes, through the nitroaldol (Henry) reaction, catalyzed by a stoichiometric amount of powdered potassium hydroxide, in dry media. Satisfactory to excellent yields are obtained both with primary and secondary nitrocompounds, either with aromatic or aliphatic aldehydes.
[EN] SYNTHESIS OF (2-NITRO)ALKYL (METH)ACRYLATES VIA TRANSESTERIFICATION OF (METH)ACRYLATE ESTERS<br/>[FR] SYNTHÈSE DE (MÉTH)ACRYLATES DE (2-NITRO)ALKYLE PAR TRANSESTÉRIFICATION D'ESTERS DE (MÉTH)ACRYLATE
申请人:ROHM & HAAS
公开号:WO2014158445A1
公开(公告)日:2014-10-02
Provided is a process for making (2-nitro)alkyl (meth)acrylate compounds of formula I: wherein n, R, R1, R2, R3, R4, R6, R7, and n are as defined herein, by a transesterification reaction between a nitroalcohol compound and a (meth)acrylate compound in the presence of a transesterification catalyst and a free radical inhibitor.
Nitroaldol (“Henry”) reactions between nitroalkanes and aldehydes in the presence of a catalyst and a two-phase reaction medium produce nitroalcohols at increased reaction rates compared to single-phase organic solvent systems, and do not require use of surfactants as is typical of single-phase aqueous solvent systems and solventless systems. The reaction medium comprises an organic solvent phase and an aqueous solvent phase. The aqueous solvent may be 100% water.
AMINOALCOHOL AND BIOCIDE COMPOSITIONS FOR AQUEOUS BASED SYSTEMS
申请人:Coburn Charles E.
公开号:US20100093736A1
公开(公告)日:2010-04-15
Biocidal compositions and their use in aqueous media, such as metalworking fluids, the compositions comprising a biocidal agent; and a non-biocidal primary amino alcohol compound of the formula (I); wherein R
1
, R
2
, R
3
, R
4
, and R
5
are as defined herein.
CORROSION AND MICROBIAL CONTROL IN HYDROCARBONACEOUS COMPOSITIONS
申请人:Tinetti Sheila M.
公开号:US20100242341A1
公开(公告)日:2010-09-30
Provided are additives of formula I for use in hydrocarbonaceous compositions, such as petroleum or liquid fuels: (I) wherein R
1
, R
2
, R
3
, R
4
, and R
5
are as defined herein. The additives improve the corrosion resistance of the compositions and, when the composition is biodiesel, also improve microbial resistance. The additives further enhance the antimicrobial efficacy of any added biocides contained in such compositions.