β Scribed by J. V. Crivello; J. L. Lee; D. A. Conlon
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Silyl enol ethers (2) react with trihutyl [(phenylthio) chloromethyl] stannane (1) in the presence of Zinc bromide to give B-phenylthiomethylstannyl ketones (3) in good yields. Silyl dienol ethers (4) mainly give products (5) due to y-attack, under these conditions. S-Stannyl Carbonyl compounds have
## Abstract Various eightβmembered cyclic siloxadienes are converted to sixβmembered siloxenes bearing an endocyclic double bond and an alkenyl substituent.
On the basis of analytical data and the following arguments the new complex is assigned the structure ( 3 ) in which two tetracarbonylmanganese fragments are symmetrically bridged by two ethoxycarbonylcarbyne ligdnds. I ) In the 'H-NMR spectrum (60 MHz; 33Β°C) the methylene protons appear as a quarte
We developed the first highly regioselective synthesis of cyclic enol ethers from readily accessible acyclic alkenyl ketones or acyclic alkenyl silyl esters using ring-closing metathesis (RCM). The RCM of acyclic enol silyl ethers was examined using Tebbe reagent 5 or Grubbs catalyst 6 or 7 and succ