Eigenschaften und Verwendbarkeit des 10, 11‐Dihydro‐5 H ‐dibenzo[ a,d ]cyclohepten‐5‐yl‐Rests (= 5‐Dibenzosuberyl‐Rests) als neue Schutzgruppe für Amine, Aminosäuren, Alkohole, Thiole und Carbonsäuren

Properties and suitability of the 10,11‐dihydro‐5 H ‐dibenzo[ a, d ]cyclohepten‐5‐yl group (= 5‐dibenzosuberyl group) as a new protecting group for amines, amino‐acids, alcohols, thiols and carboxylic acids. The 10,11‐dihydro‐5 H ‐dibenzo[ a,d ]cyclohepten‐5‐yl group (5‐dibenzosuberyl group):has been found useful for protecting amines, alcohols, thiols, and carboxylic acids. Furthermore, the investigated 5‐amino compounds are extremely stable in strongly acidic media ( e. g. in hydrogen bromide) and still the amino group is easily cleaved under mild conditions, such as those used for N‐trityl compounds ( e.g. boiling in dilute acetic acid or catalytic hydrogenation). Hence this ring system could be a valuable and adaptable protecting group, especially in peptide chemistry.