التفاصيل البيبلوغرافية
| العنوان: |
"Golden" Cascade Cyclization to Benzo[c]‐Phenanthridines. |
| المؤلفون: |
Hendrich, Christoph M., Senn, Sebastian, Haas, Lea, Hoffmann, Marvin T., Zschieschang, Ute, Greiner, Luca C., Rominger, Frank, Rudolph, Matthias, Klauk, Hagen, Dreuw, Andreas, Hashmi, A. Stephen K. |
| المصدر: |
Chemistry - A European Journal; 10/21/2021, Vol. 27 Issue 59, p14778-14784, 7p |
| مصطلحات موضوعية: |
RING formation (Chemistry), BENZYLAMINES, MOIETIES (Chemistry), HOMOGENEOUS catalysis, TRANSISTORS, ORGANIC semiconductors |
| مستخلص: |
Herein, we describe a gold‐catalyzed cascade cyclization of Boc‐protected benzylamines bearing two tethered alkyne moieties in a domino reaction initiated by a 6‐endo‐dig cyclization. The reaction was screened intensively, and the scope was explored, resulting in nine new Boc‐protected dihydrobenzo[c]phenanthridines with yields of up to 98 %; even a π‐extension and two bidirectional approaches were successful. Furthermore, thermal cleavage of the Boc group and subsequent oxidation gave substituted benzo[c]phenanthridines in up to quantitative yields. Two bidirectional approaches under the optimized conditions were successful, and the resulting π‐extended molecules were tested as organic semiconductors in organic thin‐film transistors. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
