The synthesis of inward-facing 3,6-di(2-pyridyl)pyridazine ligands
A new class of inward-facing bis(dpp-ligands) fused to rigid molecular racks are reported, eg 17 and 19. The 3,6-di(2-pyridyl)pyridazine ligand units are formed by the reaction of 3,6-di(2-pyridyl) s-tetrazine with molrac bis(olefins), eg 11 and 18 (followed by oxidation of the intermediate dihydrop...
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| Published in: | Tetrahedron letters Vol. 37; no. 16; pp. 2825 - 2828 |
|---|---|
| Main Authors: | , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Elsevier Ltd
15-04-1996
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| Abstract | A new class of inward-facing bis(dpp-ligands) fused to rigid molecular racks are reported, eg
17 and
19. The 3,6-di(2-pyridyl)pyridazine ligand units are formed by the reaction of 3,6-di(2-pyridyl)
s-tetrazine with molrac bis(olefins), eg
11 and
18 (followed by oxidation of the intermediate dihydropyridazines); additionally mono-olefin, mono-pyridazines
14 and
21 are reported. Molecular modelling and comments of the mechanism of product formation are included.
Rigid mono-and bis-DPP ligands are formed from molrac olefins with tetrazine
1 and DDQ. The steps in the conversion of
11 to
14 and of
14 to
17 are followed by
1H NMR. |
|---|---|
| AbstractList | A new class of inward-facing bis(dpp-ligands) fused to rigid molecular racks are reported, eg
17 and
19. The 3,6-di(2-pyridyl)pyridazine ligand units are formed by the reaction of 3,6-di(2-pyridyl)
s-tetrazine with molrac bis(olefins), eg
11 and
18 (followed by oxidation of the intermediate dihydropyridazines); additionally mono-olefin, mono-pyridazines
14 and
21 are reported. Molecular modelling and comments of the mechanism of product formation are included.
Rigid mono-and bis-DPP ligands are formed from molrac olefins with tetrazine
1 and DDQ. The steps in the conversion of
11 to
14 and of
14 to
17 are followed by
1H NMR. |
| Author | Tepperman, Paul M. Butler, Douglas N. Warrener, Ronald N. Gau, Robert A. |
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| References | Sauer (BIB5) 1992; 101 Butler, Barrette, Snow (BIB7) 1975 Warrener, R. N.; Liu, L. Warrener, Abbenante, Kennard, Warrener, Abbenante, Solomon, Russell, Warrener, Elsey, Houghton, Warrener, Elsey, Pitt, Russell, Warrener, Pitt, Butler (BIB2) 1994; 116 Cioslowski, Sauer, Hetzenegger, Karcher, Hierstetter (BIB4) 1993; 115 Butler, Tepperman, Gau, Warrener, Watson, Kashyap (BIB9) 1995; 36 , Warrener, Elsey, Sankar, Butler, Pekos, Kennard (BIB3) 1994; 35 . Atkinson, Oliver, Paddon-Row (BIB8) 1993; 34 Voyer, Lamothe (BIB1) 1995; 51 Voyer (10.1016/0040-4039(96)00397-8_BIB1) 1995; 51 Warrener (10.1016/0040-4039(96)00397-8_BIB2_4) 1995; 48 Butler (10.1016/0040-4039(96)00397-8_BIB7) 1975 Sauer (10.1016/0040-4039(96)00397-8_BIB5) 1992; 101 Warrener (10.1016/0040-4039(96)00397-8_BIB3) 1994; 35 Warrener (10.1016/0040-4039(96)00397-8_BIB2_1) 1994; 116 Warrener (10.1016/0040-4039(96)00397-8_BIB2_5) 1983 Warrener (10.1016/0040-4039(96)00397-8_BIB2_2) 1994; 35 Butler (10.1016/0040-4039(96)00397-8_BIB9) 1995; 36 Atkinson (10.1016/0040-4039(96)00397-8_BIB8_1) 1993; 34 Cioslowski (10.1016/0040-4039(96)00397-8_BIB4) 1993; 115 Warrener (10.1016/0040-4039(96)00397-8_BIB2_3) 1995 10.1016/0040-4039(96)00397-8_BIB6 |
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| Title | The synthesis of inward-facing 3,6-di(2-pyridyl)pyridazine ligands |
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