Dithiotropolonates. II. Synthesis and properties of dithiotropolone and its metal(II) complexes
Dithiotropolonates. II. Synthesis and properties of dithiotropolone and its metal(II) complexes
复制标题
二硫代托酚酸盐。
DOI:
10.1021/ja00711a016
复制
发表时间:
1970
期刊:
影响因子:
--
通讯作者:
R. H. Holm
中科院分区:
文献类型:
--
作者:
C. E. Forbes;R. H. Holm
Dithiotropolone (15) has been prepared in ca. 30% yield from tropolone via thereaction of hydro-sulfide ion with 1, 2-diethoxytropylium tetrafluoroborate (13) and isolated as deep red, air-sensitive crystals. Infrared, electronic, and mass spectral characterization data are reported. The tropylium species 13 has been shown to be a potentially valuable intermediate in the synthesis of 1, 7-disubstituted 1, 3, 5-cycloheptatrienes. Reactions with primary amines alone and with hydrosulfide yield,-disubstituted aminotroponeimines (16, 17) and N-substituted aminothiotropones (18), respectively, in 40-75% yield. Dithiotropolone or its sodium salt readily reacts with divalent metal salts to afford a series of intensely colored, slightly soluble bis-chelate complexes, M-(SST) 2 (7, 8). Probable ground-state electronic structures of these complexes are discussed in relation to neutral bis (dithiolene) complexes (1). Spectral and polarographic studies reveal that, like the dithiolenes, M (SST) 2 species (M=