SUPERACID CYCLIZATION OF HOMO- AND BISHOMOISOPRENOID ACIDS

Article abstract of DOI:10.1007/BF00474221

The superacid cyclization of a number of homo- and bishomoterpenoid acids, the products of which are γ- and δ-lactones - important natural compounds or intermediates for the synthesis and manufacture of valuable substances - was investigated.It is shown that the superacid cyclization of homo- and bishomoterpenoid acids to γ- and δ-lactones proceeds stereospecifically, chemoselectively, and structurally selectively, is general in character, and ensures high yields of the desired products.