## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Improved Synthesis of 2,2‘-Dibromo-9,9‘-spirobifluorene and Its 2,2‘-Bisdonor-7,7‘-bisacceptor-Substituted Fluorescent Derivatives
✍ Scribed by Chiang, Chih-Long; Shu, Ching-Fong; Chen, Chin-Ti
- Book ID
- 120476640
- Publisher
- American Chemical Society
- Year
- 2005
- Tongue
- English
- Weight
- 175 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1523-7060
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## Abstract The 7‐(2‐bromoethyl) derivatives, **2a** and **2b**, of 4‐chloro‐7__H__‐pyrrolo[2,3‐__d__]pyrimidine (**1a**) and 4‐chloro‐7__H__‐pyrrolo[2,3‐__d__]pyrimidin‐2‐amine (**1b**) were synthesized by nucleobase anion alkylation (NaH, DMF) and crystallized. X‐Ray analyses of both compounds we
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
Syntheses of 2,7 ,9-triene and the methoxycarbonyl derivatives are described; their electronic spectra suggest the presence of orbital interactions among the four x-bonds. Polycyclic unsaturated compounds having an unique carbon framework have intrigued organic chemists on account of peculiar prop