Arynes, strained cyclic alkynes, and strained cyclic allenes were validated as plausible
intermediates in the 1950s and 1960s. Despite initially being considered mere scientific …

Publisher Summary Benzo [c] furans (isobenzofurans) constitute a unique class of π-
excessive heterocyclic compounds that can be derived from the isoconjugated indenyl …

Strained intermediates such as cyclic alkynes and allenes are most commonly utilized in
nucleophilic additions and cycloadditions but have seen increased use in a third area of …

Strained cycloalkynes are valuable building blocks in synthetic chemistry due to their high
degree of reactivity and ability to form structurally complex scaffolds, common features of …

The reaction of 4-substituted cyclohex-1-enyl (phenyl) iodonium tetrafluoroborate with
tetrabutylammonium acetate gives both the ipso and cine acetate-substitution products in …

6 Cyclic Allenes Up to Seven-Membered Rings oxygen or a nitrogen atom next to the allene
moiety in the ring deviate from those of homocyclic 1, 2-cyclohexadienes [10–14]. Since 1, 3 …

10-Bromo-10-fluorotetracyclo [6.3. 1.02, 7.09, 11] dodeca-2, 4, 6-triene (12) was prepared by
addition of bromofluorocarbene to benzonorbornadiene (10). Treatment of a solution of 12 in …

High-temperature bromination of 10-bromotricyclo [6.3. 1.02, 7] dodeca-2, 4, 6, 9-tetraene
(8) resulted mainly in the formation of two isomeric tribromides (16 and 17) whose …

The potential energy surfaces for the cycloaddition reactions of angle strained cycloalkynes
to ethylene have been studied using ab initio methods. All the stationary points were …

We describe herein an efficient and simple method for the stereoselective
hydrodebromination of 1, 1-dibromoalkenes by using a catalytic amount of the nucleophilic …