Abstract
This review deals with selective preparative methods for aromatic compounds, such as some phenolic compounds, 1,2-di- and 1,2,3-trisubstituted benzenes, 2-substituted biphenyls, 10,11-dihydro-5H-dibenzo [a,d]cycloheptene, [2,2]metacyclophanes, and carbazoles using t-butyl groups and halogen atoms, such as bromine and iodine, as protective groups. 1. Introduction 2. Selective Preparation of Some Phenolic Compounds 2.1t-Butyl as a Positional Protective Group 2.2 Halogen Atoms as a Positional Protective Group 3. Selective Preparation of 1,2-Di- and 1,2,3-Trisubstituted Benzenes 4. Selective Preparation of Diarylalkanes 5. Selective Preparation of 2-Mono- and 2,2′-Disubstituted Biphenyls 6. A New Preparation of 10,11-Dihydro-5H-dibenzo[a,d]cycloheptene 7. A Convenient Synthesis of [2,2]Metacyclophanes 8. A New Preparation of Carbazoles