The Synthesis of Dimethyl<i>dl</i>-3-Ethyl-4-methyl-1,2-cyclopentanedicarboxylates
作者:Shosuke Ito、Yoshimasa Hirata
DOI:10.1246/bcsj.50.227
日期:1977.1
The four 3,4-cis-stereoisomers of dimethyl dl-3-ethyl-4-methyl-1,2-cyclopentanedicarboxylates (1a, 1b, 1c, and 1d) have been synthesized and their configurations established. A comparison of the spectral data and the GLC behaviors has shown that the corresponding ester, one of the key degradation products of ikarugamycin, has the r-1, t-2, c-3, c-4-configuration (1a). The r-1, t-2, c-3, t-4-stereoisomer (1f) has also been prepared.
Principal solvents, especially mono-ol and diol principal solvents, having a ClogP of from about 0.15 to about 0.64, preferably from about 0.25 to about 0.62, and more preferably from about 0.40 to about 0.60, are disclosed that have the ability to make clear aqueous fabric softener compositions containing relatively high concentrations of fabric softener actives having ester linkages in their long, hydrophobic chains. The fabric softener actives are either unsaturated, or have intermediate length chains (˜C
12-14
) and the said principal solvents are used at levels of less than about 40%. Other solvents may be present. Some of the said principal solvents are novel compounds and/or novel mixtures. Premixes of the fabric softening actives, the principal solvents, and, optionally, other solvents are useful in the preparation of complete formulations by obviating/limiting the need for heating.
Die vorliegende Erfindung betrifft eine wässrige Lackzusammensetzung zur Herstellung einer Lackschicht in einem inkjet-Verfahren, wobei die wässrige Lackzusammensetzung eine Bindemittelzusammensetzung, umfassend ein Polyacrylat und ein Polyurethan, mindestens ein Feuchthaltemittel, und Wasser umfasst und sich dadurch auszeichnet, dass sie einen Bindemittelfeststoffanteil von mindestens 20 Gew.-% aufweist, bezogen auf das Gesamtgewicht der Lackzusammensetzung.