No abstract

Treatment of [Tp*Rh(coe)(MeCN)] (Tp* = hydrotris(3,5-dimethylpyrazol-1-yl)borate; coe = cyclooctene) with S8 in MeCN afforded a complex with a chelating pentasulfido(2−) ligand [Tp*Rh(S5)(MeCN)], which was converted further to [Tp*Rh(S5)(CNXy)] (3; Xy = 2,6-Me2C6H3) by the reaction with XyNC. An X-ray analysis was carried out for 3, which disclosed a chair conformation for the RhS5 ring.

Cyclo-(L-tryptophyl-L-phenylalanyl), a Plant Growth Regulator Produced by the Fungus Penicillium sp.-The effects of the title compound (I), L-tryptophan and L-phenylalanine against plant growth using tea and pine pollen grains, lettuce, cress, and rice seeds are investigated. The results show that they exhibit different activities. Therefore, the biological activity of the title dipeptide results from the intact compound and not the degradation to the amino acids.-(KIMURA, Y.; TANI, K.; KOJIMA, A.; SOTOMA, G.; OKADA, K.; SHIMADA, A.; Phytochemistry 41 (1996) 3, 665-669; Dep. Bioresour. Sci., Fac. Agric., Tottori Univ., Koyama, Tottori 680, Japan; EN)