Skeletal isomerization of n-alkenes into isoalkenes and enrichment of isoalkenes in alkene-containing hydrocarbon mixtures is effected in the presence of an isomerization catalyst containing a microporous silicon- containing alumophosphate.A goal of the method for skeletal isomerization is to provide a ...
The invention relates to the skeleton isomerisation of n-alkenes into isoalkenes or the enrichment of isoalkenes to form alkene-containing hydrocarbon mixtures. The object of the invention was to develop a process using halogen-free catalysts with a cycle time in a running period of more than ...
to deliver the desired product2jin an excellent 92% yield. The structure of2jwas further confirmed by X-ray diffraction (for more details, see Supplementary Fig.10). For the variation of sulfonyl groups, a variety of substitutions were also tested and found amenable in this process to access...
(57–67) were obtained in high yields. Remarkably, indoles derived from naturally occurring terpenes such as geraniol and perillyl alcohol were also smoothly transformed into their corresponding quinoline-3-carboxaldehyde analogs68and69respectively, despite containing potentially vulnerable ester and alkene ...
11. Total synthesis of ()-retigeranic acid A convergent synthesis of ()-retigeranic acid is described that is based on a Diels-Alder and arene-alkene cycloaddition strategy. PA Wender,SK Singh - 《Tetrahedron Letters》 被引量: 437发表: 1990年 A convergent synthesis of triquinane ...
Skeletal isomerization of n-alkenes into isoalkenes and enrichment of isoalkenes in alkene-containing hydrocarbon mixtures is effected in the presence of an isomerization catalyst containing a microporous silicon- containing alumophosphate.A goal of the method for skeletal isomerization is to provide a ...