The infrared spectra of a number of new ethers, amino derivatives, and sulfur-containing s-triazines have been obtained in the region between 3333 and 670 cm−1. An interpretation of the spectra is given and some new assignments are made In addition the existance of certain hydroxy and thiol derivatives in the keto and thioketo configuration is shown
Although we do not expect true rodlike characteristics at short length scales, we do expect that properties which are sensitive to distances larger than b will be adequately represented by this model.(5) O. Kratky and G.
A number of new cyclopoly‐s‐triazinylene thioethers and disulfides have been prepared in dilute solution. Their structures and methods of formation are discussed. A thermo‐gravimetric analysis of cyclopoly‐2‐phenyl‐s‐triazinylene‐4,6‐monosulfide is included.
Ethyl 3,4,5-trimethoxymandelate (IV) (7). A solution of 3 grams (0.0134 mole) of (I) (vacuum dried) in 20 ml. of anhydrous ethanol was saturated with dry hydrogen chloride at 0-5°and refrigerated (4°) over night. Excess solvent was removed from the purple semi-solid mass at the water pump and 50 ml. of water added. Solid barium carbonate was added in excess to neutralize the acid, the mixture kept for 2 hours in the dark, filtered, and the filtrate extracted with four 30-ml. portions of ethyl acetate, using the first two portions of solvent to extract also the filter cake. The combined extracts were dried with sodium sulfate, and the solvent was removed under vacuum to give a yellow oil which crystallized slowly on standing. Recrystallization from ethanol-water gave 1.91 grams (53%) of (IV), m.p. 83-5°.
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