INTERMEDIATE CLOSE - UP Can these substituted aromaticsworkforyou? Benzyl chloride
Research Chemist's Corner
A versatile intermediate which finds use in the manufacture of plasticizers and resins, quaternary am monium compounds, pharmaceu ticals and perfume bases. T h e compound has a boiling range of 2°C. maximum, including 179.4°C. Write for Technical Bulletin O-80.
Toluenesulfonic acid
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With a minimum assay of 94%, toluenesulfonic acid serves in the synthesis of cresols; as a catalyst for phenol-formaldehyde reactions; in a number of esterifications; and as a dyestuffs intermediate. Sample available to qualified chemists.
Benzenesulfonic acid Readily available as an intermediate in plastics processing. The com pound has a minimum assay of 70%.
The substituted aromatics offer you a tremendous field for explo ration in your research and devel opment work.
pensive compound. Over 120 dif ferent syntheses based on ΟNCR are shown o n M o n s a n t o ' s new wall chart. One of these derivatives may prove the answer to your problem. They are only a few of the large
T a k e ortho-nitrochlorobenzcnc for example, that versatile, inex
CHECK T H E S E
group of substituted made by Monsanto.
aromatics
Check the coupon for your copy of the chart. T h e n see Monsanto for help in exploring the field of lor substituted aromatics.
S U B S T I T U T E D AROMATICS
3/4-dich9oroGniSSne
o-te!uenesu!fony! chloride so 2 a
p-chlorobenzenesulfonyl chloride so2ci
Colorless liquid 9 8 % or higher
W h i t e needles 97%
1 2 6 ° C (10mm Hg) 1 0.1 ° C . minimum Stable in the absence of mois ture.
1 4 1 ° C . (15mm Hg) 5 1 . 6 ° C minimum Hydrolyzes slightly in neutral aqueous m e d i a ; hydrolyzes more r a p i d l y in basic media.
Structure: CI CI Appearance: Assay: Boiling Point: Crystallizing Point: Stability:
White to light t a n solid 9 7 % min. Contains small traces of other isomers. 7 0 - 7 1 ° C. Similar t o aniline in stability; discolors in the presence of oxy gen a n d light.
CI
