caa a22 4500 467991383 CHVBK 20180323112545.0 cr unu---uuuuu 170328e19900701xx s 000 0 eng 10.1007/BF00509700 doi (NATIONALLICENCE)springer-10.1007/BF00509700 Synthesis of 3 a ,6,6,9 a -tetramethyl-trans-perhydronaphtho [2,1-b]furan and 4 a ,7,7,10 a -tetramethyl-trans-perhydronaphtho [2,1-b]pyran [Elektronische Daten] [P. Vlad, N. Ungur, V. Perutskii] The compounds 3a,6,6,9a-tetramethyl-trans-perhydronaphtho[2,1-b]furan (ambrox or ambroxide) and 4a,7,7,10a-tetramethyl-trans-perhydronaphtho[2,1-b]pyran (homofixator) — substances important in the perfume industry — have been synthesized by superacid cyclization of E,E-homofarnesol and E,E-bishomofarnesol or mixtures of the isomeric bicyclohomofarnesenes or bicyclobishomofarnesenols. Superacid cyclization of these alcohols was shown to be an effective structurally selective and stereospecific method of obtaining ambroxide and homofixator. Plenum Publishing Corporation, 1991 Vlad P. Institute of Chemistry, Academy of Sciences of the Moldavian SSR, 277028, Kishinev aut Ungur N. Institute of Chemistry, Academy of Sciences of the Moldavian SSR, 277028, Kishinev aut Perutskii V. Institute of Chemistry, Academy of Sciences of the Moldavian SSR, 277028, Kishinev aut Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/7(1990-07-01), 746-750 0009-3122 26:7<746 1990 26 10593 https://doi.org/10.1007/BF00509700 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00509700 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vlad P. Institute of Chemistry, Academy of Sciences of the Moldavian SSR, 277028, Kishinev aut NATIONALLICENCE 700 1- Ungur N. Institute of Chemistry, Academy of Sciences of the Moldavian SSR, 277028, Kishinev aut NATIONALLICENCE 700 1- Perutskii V. Institute of Chemistry, Academy of Sciences of the Moldavian SSR, 277028, Kishinev aut NATIONALLICENCE 773 0- Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/7(1990-07-01), 746-750 0009-3122 26:7<746 1990 26 10593 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer