| 摘要 |
<p>m-Hydroxyphenyl substituted compounds of formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="23" wi="75" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>where R is an organic radical and R' is hydrogen or an organic radical are prepared by dehydrohalogenating a compound of formula
<Chemistry id="chema02" num="0002"><Image id="ia02" he="26" wi="73" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>(where X is chlorine or bromine, and R and R' have the above meanings). Preferred novel starting materials of formula (ll) are of the formula
<Chemistry id="chema03" num="0003"><Image id="ia03" he="24" wi="89" file="IMGA0003.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>(where R<Sup>1</Sup> and X are as above, n is 2, 3 or 4, R<Sup>2 </Sup>is hydrogen or lower alkyl and R<Sup>3</Sup> is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl(lower)alkyl or aryl(lower)alkyl).</p> |
