A novel heterocyclic atom exchange reaction with Lawesson's reagent: a one-pot synthesis of dithiomaltol
作者:Daniel Brayton、Faith E. Jacobsen、Seth M. Cohen、Patrick J. Farmer
DOI:10.1039/b511966a
日期:——
A one-pot reaction of maltol with Lawesson's reagent generates dithiomaltol, a thiopyran-4-thione, via an unusual heterocyclic atom exchange (HCAE) reaction; only pyrones with proton or aliphatic substituents undergo the HCAE substitution.
An esr investigation on group IVb organometalloxy- and organometalthio-pyryl and thiapyryl radicals
作者:Angelo Alberti、Francesco Paolo Colonna、Gian Franco Pedulli
DOI:10.1016/0040-4020(80)88030-6
日期:1980.1
triphenylgermyl and triphenylstannyl radicals with γ-pyrone, γ-thiopyrone, thia-γ-pyrone and thia-γ-thiopyrone have been studied by ESR spectroscopy. The spectral parameters indicate that these radicals adopt the conformation where the O-M or S-M bonds are eclipsed with the 2 pz orbital of the γ-carbon, despite the absence of hindering substituent groups in proximity of the radical centre.
通过ESR光谱研究了三苯基甲硅烷基,三苯基锗基和三苯基锡烷基与γ-吡喃酮,γ-硫代吡喃酮,硫代-γ-吡喃酮和硫代-γ-硫代吡喃酮的自旋加合物。光谱参数表明,尽管自由基中心附近不存在阻碍取代基的基团,但这些自由基采用的构型是OM或SM键被γ-碳的2 p z轨道所遮盖。
Traverso, Annali di Chimica, 1956, vol. 46, p. 821,835
作者:Traverso
DOI:——
日期:——
Traverso, Annali di Chimica, 1957, vol. 47, p. 3,12
作者:Traverso
DOI:——
日期:——
Seitz,G. et al., Justus Liebigs Annalen der Chemie, 1972, vol. 757, p. 93 - 99