Abstrad.We re-examine the so-called Nambu-Iona-Lasinio mechanism suggested by Song, Xu and Chin in breaking the supersymmetry in the Wess-Zumino model and show that this mechanism cannot be justified without assuming special effects behveen fermions. The fermion condensation suggested by them corresponds to an mstable vacumm configuration and as a result there is no fermion condensation and no supersymmetg breaking in the model they discuss.

Die Titelverbindungen (I) und (II) reagieren bei Gegenwart von überschüssigem Diethylamin zu dem Ammoniumsalz (III), das durch HCl in das Thioamid (IV) übergeführt wird.

Fused Pyridines. Part 9. Synthesis and Properties of Substituted 3-Cyano-5,6,7,8-tetrahydro-2(1H)-quinolinethiones.-A convenient approach to partly hard accessible title quinoline thiones (III) and (VIII) is offered utilizing a Michael addition of enamine (I) or dimedone, resp., to thioacetamides (II). The regioselective and smoothly proceeding alkylation of these quinolinethiones permits the synthesis of otherwise hardly accessible fused heterocycles (cf. (V), (X)). -(SHARANIN, YU. A.; GONCHARENKO, M. P.; SHESTOPALOV, A. M.; LITVINOV, V. P.; TUROV, A. V.; Zh.

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Synthesis and Regioselective (3,3)Sigmatropic Rearrangement of Substituted 2-Allylthio(seleno)-1,4-dihydropyridines. -The allylthiopyridines (III), which are prepared from the thiolates (I) , undergo sigmatropic rearrangement upon heating to produce the thiones (IV). The synthesis of the seleno analogues (VII) is achieved by condensation reaction of the keto ester (V) with the cyanoselenoacetamide (VI) followed by treatment with allyl bromide. The compounds (VI) are rearranged in refluxing benzene to give the selones (VIII). -(LITVINOV, V. P.; SHARANIN, YU. A.; GONCHARENKO, M. P.; DYACHENKO, V. D.; SHESTOPALOV, A. M.; Izv.