Elektrophile Substitutionsreaktionen an 1.6-Methano[10]annulenderivaten
作者:R. Neidlein、G. Lautenschläger
DOI:10.1002/ardp.19883211221
日期:——
Durch verschiedene elektrophile Substitutionsreaktion werden die 1,6‐Methanol[10]annulenderivate 7, 8, 10, 12, 13, 14, sowie 15 erhalten und zur Klärung der chemischen Strukturen eingehenden instrumentalanalytischen Untersuchungen unterworfen.
Kupplungsreaktionen von Diazoniumbetainen mit 1,6-Methano[10]-annulenderivaten und ihre Cyclisierungsreaktionen zu Heterocyclen
作者:Richard Neidlein、Andrea A. Johmann
DOI:10.1007/bf00809367
日期:1991.3
Coupling reactions of the diazoniumbetaines 2, 4, 6a, 6b, 6c with derivatives of 1,6-methano[10]annulene 1 a-c and/or beta-naphthol 7 yield the dyes 3 a-c, 5a, 5c, 8 a-c, 9, 11. The syntheses of different triazine derivatives 12 a-c, 13 a-c, 15, 16, and 17a, 17c are described.
2-Substituierte 1,6-Methanol[10]annulene als Dienophile in der [4 + 2]-Cycloaddition mit inversem Elektronenbedarf
作者:U. Reimers、G. Seitz
DOI:10.1002/prac.19933350207
日期:——
The LUMO-diene-controlled [4 + 21 cycloadditions of various at C-2 substituted 1,6-methano [10]annulenes 6, 10 and 13 with the electron-deficient s-cis-fixed diazadiene system of 3,6-bis(trifluoro-methyl)-1,2,4,5-tetrazine (3) are described. With the donor substituted 6 (or its valence tautomer 7) 3 reacts under unusually mild conditions to give the 7,12-methanocyclodeca[d]pyridazine 9 with high site selectivity. The Diels-Alder reaction of 3 with the 2-bromo-1,6-methano[10]annulene (10 half arrow right over half arrow left 11) leads to the 6- and 8-bromo-7,12-methanocyclodeca[d]pyridazines 12 a and 12 b, whereas with the various acceptor substituted species 13 half arrow right over half arrow left 14 the 8-substituted 7,12-methanocyclodeca[d]pyridazines 15 a - c are formed exclusively. Spectroscopic data show, that for all the novel methanocyclodeca[d]pyridazines 9, 12 and 15 the annulenic structure is dominating, but a remarkable reduction of the ring current and a distinct bond alternation is observed compared to the parent 1,6-methano[10]annulene 1.
NEIDLEIN, RICHARD;JOHMANN, ANDREA A., MONATSH. CHEM., 122,(1991) N, C. 215-227
作者:NEIDLEIN, RICHARD、JOHMANN, ANDREA A.
DOI:——
日期:——
NEIDLEIN, R.;LAUTENSCHLAGER, G., ARCH. PHARM., 321,(1988) N 12, C. 931-934