Synthese eines 2,5,7,10-substituierten 1,6-Methano[10]annulens,seine Methylierung, Ätherspaltung und Deprotonierung

Synthesis of a 2,5,7,10-Substituted 1,6-Methanol10]annulene, its Methylation, Ether Cleavage; and Deprotonation The synthesis of 2,7 -di(tert -butoxy)-1,6-methanol10]annulene derivatives 2 and 3 are described. Methylation of 3 gave 4 , and 4 was transformed, on treatment with p-toluene sulfonic acid, to the salt 5 . Basic reagents deprotonated 5 ; the resulting solution was analyzed by ¹H-NMR spectroscopy.