1-(Triphenylmethyl)allyl potassium :conformational preference and [1,2]-rearrangement

Add time:08/06/2019    Source:sciencedirect.com

Upon treatment with the superbasic 1 : 1 mixture of butyllithium and potassium tert-butoxide cis- and trans-1,1,1-triphenyl-2-butene as well as 4,4,4-triphenyl-1-butene undergo a hydrogen/metal exchange to afford 1-(triphenylmethyl)allyl potassium [4,4,4-triphenyl-2-butenyl potassium] which can exist in two stereoisomeric forms. Torsional equilibration leads to an endo/exo-ratio of approximately 50 : 50. Novel endo-stabilizing interactions are discussed to rationalize this result. At temperatures around or above 0°C a phenyl 1,2-migration, though no 1,4-migration takes place.

We also recommend Trading Suppliers and Manufacturers of Phenyl(triphenylmethyl) sulfide (cas 16928-73-7). Pls Click Website Link as below: cas 16928-73-7 suppliers

Prev:Electrochemical reduction mechanism of organic sulphides
Next:Red photoluminescence in the synthesis of triphenylmethyl radicals by the Gomberg method)