Krief, Alain;Wouters, Johan;Norberg, Bernadette;Kremer, Adrian published 《Formalizing the mechanism of the allylic substitution reaction (SN’): application to the highly enantio- and diastereo-selective syntheses of 1-phenyl-2-vinylcyclopentanes》 in 2018. The article was appeared in 《ARKIVOC (Gainesville, FL, United States)》. They have made some progress in their research.Product Details of 39637-74-6 The article mentions the following:
An efficient stereoselective and high yielding syntheses of each of the four enantiomers of phenylcyclopentanes e.g., I bearing a quaternary center and a E-propenyl chain on the adjacent carbon that involves intramol. allylic substitution reactions has been reported. In complement to its synthetic value, this process models the SN’ reaction and allows prediction of its stereochem. outcome. The experimental procedure involved many compounds, such as (1S)-4,7,7-Trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carbonyl chloride(Chunks or pellets) (cas: 39637-74-6) .
(1S)-4,7,7-Trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carbonyl chloride(Chunks or pellets) (cas: 39637-74-6 Product Details of 39637-74-6) is a chiral derivatizing agent. It can be prepared by reacting (-)-(1S,4R)-camphanic acid with thionyl chloride.
Reference:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics