Improvements in the preparation of certain dyestuff intermediates (1918)
Birchard, John Wesley · leaf 39
15 Michler' s ketone or tetramethyldiaminohenzophenone has "been in- vestigated extensively by Michler • … 0 Michler states that phosgene reacts with dimethyl aniline at or- dinary temperature hut it was found in this work that they do not react at ordinary temperature. Upon heating to 120°C, nearly one half of the phosgene is lost. More phosgene must then he added. Experimental . The first work was the…
Dyes and dyeing · Intermediates (Chemistry) · Theses
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