caa a22 4500 475761367 CHVBK 20180406123552.0 cr unu---uuuuu 170329e20000801xx s 000 0 eng 10.1007/BF02495087 doi (NATIONALLICENCE)springer-10.1007/BF02495087 peri -Naphthylenediamines [Elektronische Daten] 30. 1,2,8-Tris(dimethylamino)naphthalene and some other 2-amino derivatives of "proton sponge” [V. Ozeryanskii, A. Pozharskii] Catalytic hydrogenation of 1,8-bis(dimethylamino)-2-nitronaphthalene afforded previously unknown 2-amino-1,8-bis(dimethylamino)naphthalene. ItsN-acetyl derivative and 1,2,8-tris(dimethylamino)naphthalene were prepared. The pK a 1 values of the 2-NH2-, 2-NHAc-, and 2-NMe2-substituted "proton sponges” determined by a competition method in DMSO are equal to 10.3, 7.5, and 9.0, respectively. Kluwer Academic/Plenum Publishers, 2000 naphthylamines nationallicence proton sponge nationallicence catalytic hydrogenation nationallicence methylation nationallicence basicity nationallicence supporting effect nationallicence Ozeryanskii V. Rostoy State University, 7 ul. Zorge, 344090, Rostov-on-Don, Russian Federation aut Pozharskii A. Rostoy State University, 7 ul. Zorge, 344090, Rostov-on-Don, Russian Federation aut Russian Chemical Bulletin Kluwer Academic Publishers-Plenum Publishers 49/8(2000-08-01), 1406-1408 1066-5285 49:8<1406 2000 49 11172 https://doi.org/10.1007/BF02495087 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02495087 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ozeryanskii V. Rostoy State University, 7 ul. Zorge, 344090, Rostov-on-Don, Russian Federation aut NATIONALLICENCE 700 1- Pozharskii A. Rostoy State University, 7 ul. Zorge, 344090, Rostov-on-Don, Russian Federation aut NATIONALLICENCE 773 0- Russian Chemical Bulletin Kluwer Academic Publishers-Plenum Publishers 49/8(2000-08-01), 1406-1408 1066-5285 49:8<1406 2000 49 11172 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer