Organometallics p. 3121 - 3123 (1995)
Update date:2022-08-03
Topics:
Tokitoh, Norihiro
Kano, Naokazu
Shibata, Kazusato
Okazaki, Renji
The first examples of Pb-containing cyclic polysulfides, 1,2,3,4,5-tetrathiaplumbolanes (R1R2-PbS4: 2 (R1 = Tbt, R2 = Tip), 3 (R1 = Tbt, R2 = Ttm), and 4 (R1 = R2 = Tip); Tbt = 2,4,6-tris[bis(trimethylsilyl)methyl]phenyl, Tip = 2,4,6-triisopropylphenyl, and Ttm = 2,4,6-tris[(trimethylsilyl)methyl]phenyl), were synthesized and isolated as stable crystalline compounds by sulfurization of the corresponding kinetically stabilized diarylplumbylenes Tbt(Tip)Pb: (6), Tbt(Ttm)Pb: (7), and Tip2Pb: (10). The molecular structures of the novel lead-containing metallacycles 2 and 4 were determined by X-ray cristallographic analysis.
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Doi:10.1021/ol991135g
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(1995)