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Details for article 75 of 143 found articles
| Title: |
NEW PYRROLO[1,2-A][1,10]PHENANTHROLINE DERIVATIVES |
| Author: |
F. Dumitrascu C. Draghici Loredana Barbu Christina Zalaru |
| Appeared in: |
Analele Universitatii Bucuresti. Chimie |
| Paging: | Volume XIII (2004) nr. I-II pages 191-195 |
| Year: |
2004 |
| Contents: |
The 1,3-dipolar cycloadditions between 1-(4-chlorophenacyl)-1,10-phenantroliniumylide 4 and dimethyl, diethyl or diisopropyl esters of acetylenedicarboxylic acid gavepyrrolo[1,2-a][1,10]phenantrolines 7a-c. The helical chirality of ethyl (7b) and isopropyl esters(7c) was put in evidence by 1H-NMR spectroscopy and the activation free energy was estimatedfrom the coalescence. Treatment of ylide 4 with acetylenic esters at room temperature gaveregio- and stereospecifically a mixture of cis-3,3a-dihydropyrrolophenantrolines 6 along withvariable amounts of 7. |
| Publisher: |
Ars Docendi Publishing House (provided by DOAJ) |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 75 of 143 found articles
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