Reactivity of 1,1′-Spirobi(3H-2,1-benzoxatellurole)-3,3′-dione [10-Te-4(C2O2)] with Organic Phosphorus Reagents: The First Synthesis of a Tellurane with Two Carbon- and Two Sulfur-Tellurium Bonds, 1,1′-Spirobi(3H-2,1-benzothiatellurole)-3,3′-dione [10-Te-4(C2S2)]
Reactivity of 1,1′-Spirobi(3H-2,1-benzoxatellurole)-3,3′-dione [10-Te-4(C2O2)] with Organic Phosphorus Reagents: The First Synthesis of a Tellurane with Two Carbon- and Two Sulfur-Tellurium Bonds, 1,1′-Spirobi(3H-2,1-benzothiatellurole)-3,3′-dione [10-Te-4(C2S2)]