85287-74-7Relevant academic research and scientific papers
HIGH DIASTEREOFACIAL SELECTIVITY IN THE REACTION OF SILYL ENOL ETHERS WITH CHLOROSULFIDES
Iqbal, Javed,Shukla, Alka
, p. 8753 - 8766 (2007/10/02)
The chlorosulfides 1 or 2 react with silyl enol ethers in presence of anhydrous zinc bromide to give mainly the corresponding syn products 4 or 6 respectively.The high syn selectivity of thee reactions is explained by nucleophilic addition to a chelated chiral thionium ion.
O-SILYLATED ENOLATE PHENYLTHIOALKYLATION: a SYNTHESIS OF α,β-UNSATURATED 5- AND 6-MEMBERED LACTONES.
Khan, Hassan A.,Paterson, Ian
, p. 5083 - 5084 (2007/10/02)
ZnBr2-catalysed phenylthioalkylation of keten bis(trimethylsilyl)acetals, obtained from carboxylic acids, with appropriate α-chlorosulphides can be used to prepare γ- and δ-lactones.
