ChemInform Abstract: New Phosphabenzenes by (4 + 2) Cycloaddition of Stannoles to 1-Phospha- 1-alkynes - Determination of Signs of Coupling Constants (nJ(31P, 13C), nJ(31P, 1H), 2J(31P, 29Si), 2J(119Sn, 31P)).

2,5-Dihydro-1,2,5-phosphasilaborole Deri

2,5-Dihydro-1,2,5-phosphasilaborole Derivatives: Determination of Signs of Coupling Constants [1J(31P,29Si), 2J(31P,31P), J(31P,13C), J(31P,1H)]

✍ Bernd Wrackmeyer; Gerald Kehr; Roland Köster; Günter Seidel 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 418 KB

2,5-Dihydro-1,2,5-phosphasilaborole derivatives 1-3, 5 and 6 and the 1,2,5,6-tetrahydro-l,2,5-phosphasilaborin derivative 4 were studied with respect to the signs of coupling constants 'J(3'P,2gSi), 2J(3'P,31P), "J(3'P,'"C) (n = 1, 2, 3) and nJ(3'P,'H) (n = 2, 3, 4). The determination of relative co