reported to illustrate each sequence. Although apparently more versatile, hydroformylation of alkenes using MW heating is sensitive to the nature of the nucleophiles present in the substrates, evidencing that the conventional heating process cannot be completely replaced by MW irradiation. domino reaction - heterocycles -nucleophilicaddition-cyclization- hemiacetals - Pictet-Spengler reaction
Esch, Peter M.; Hiemstra, Henk; Klaver, Wim J., Heterocycles, 1987, vol. 26, # 1, p. 75 - 79
作者:Esch, Peter M.、Hiemstra, Henk、Klaver, Wim J.、Speckamp, W. Nico
DOI:——
日期:——
Cyclisation chemistry of some functionalised allylsilanes
作者:Reena Chakraborty、Nigel S. Simpkins
DOI:10.1016/s0040-4020(01)88293-4
日期:1991.9
allylic silanes bearing additional functionality in the form of either a bromide or a phenylsulphonyl group were synthesised and condensed with a variety of electrophilic partners. Subsequent cyclisation of some of the products was then possible by utilising the acid-promoted reactions of the allylsilane grouping, to give one spiropentannulated product (8) and two medium ring ether sulphones (12) and