Electrophilic aromatic substitution. Part 36. Protiodetritiation of some annelated meta-cyclophanes: effect of ring-buckling on reactivity, and the first example of electrophilic substitution through a hole
作者:Andrew P. Laws、Adrian P. Neary、Roger Taylor
DOI:10.1039/p29870001033
日期:——
electrophile at one face of the loop formed between the alkyl chain and the aromatic ring, and departure of the leaving group (triton) from the opposite face, i.e. substitution occurs through a ‘hole’. This is the firstexample of electrophilicsubstitution at an enclosed site. The fact that steric effects in both reagent and product in hydrogen exchange are almost identical is postulated as a primary reason