826-05-1Relevant academic research and scientific papers
The use of temporary tethers in the meta photocycloaddition reaction
Penkett, Clive S.,Byrne, Paul W.,Teobald, Barry J.,Rola, Benedicte,Ozanne, Aurelie,Hitchcock, Peter B.
, p. 2771 - 2784 (2007/10/03)
The use of temporary tethers in facilitating meta photocycloaddition reactions between phenol and allyl alcohol derivatives has been investigated. The merits of silicon, carbonate and methylene acetal tethers were assessed, whilst considering strategies for the preparation of the natural products gymnomitrol and gelsemine. The photoadducts were epoxidised, and then subjected to acid catalysed fragmentation with concomitant cleavage of the tether. Depending on whether water or methanol was used during the fragmentation stage of the methylene tethers, the methylene group was either removed altogether or transformed into a MOM group.
ORGANOSILICON AND ORGANOPHOSPHORUS COMPOUNDS WITH PSEUDOHALIDE GROUPS 4.SYNTHESIS OF ALKOXYDIMETHYLSILYL ISOTHIOCYANATES AND THEIR PROPERTIES
Krolevets, A. A.,Dolodonov, I. S.,Antipova, V. V.,Martynov, I. V.
, p. 158 - 162 (2007/10/02)
Some alkoxydimethylsilyl isothiocyanates were synthesized, and their reactions with metal fluorides (ZnF2, SbF3), as well as with acetyl chloride, were investigated. Keywords: organosilicon compounds, isothocyanates, acetyl chloride, metal fluorides.
LEWIS ACID PROMOTED CONDENSATION OF CARBONYL COMPOUNDS WITH ALKOXYALLYLSILANES - SYNTHESIS OF SUBSTITUTED TETRAHYDROPYRANS
Wei, Z. Y.,Li, J. S.,Wang, D.,Chan, T. H.
, p. 3441 - 3444 (2007/10/02)
The condensation of alkoxyallylsilanes with carbonyl compounds under Lewis acid conditions gave all cis-4-chloro-2,6-disubstituted-tetrahydropyrans.The reaction was found to proceed through a mixed silyl acetal intermediate.
