Synthesis and conformational studies of an asymmetrical dibenzo-16-crown-5 carboxylic acid

Journal of Inclusion Phenomena

Volumn 36, Issue 3, 2000, Pages 287-299

  Kim, Jong Seung ^a   Bartsch, Richard A ^b   Ramesh, Visvanathan ^b  

^a Konyang University   (South Korea)

^b TEXAS TECH UNIVERSITY   (United States)

Author keywords

Complexation; Crown ether; NMR

Indexed keywords

EID: 0034147757     PISSN: 09230750     EISSN: None     Source Type: Journal    
DOI: 10.1023/A:1008078220916     Document Type: Article

References (17)

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14. 14. Chromium trioxide anhydride (16.2 g) and concentrated sulfuric acid (3.8 mL) were added to 20 mL of water and then diluted to 60 mL with water.
15. 2O.
16. 16. NOE experiments performed to indicate which isomer was present (cis or trans) were unsuccessful. However, the product (cis-7) of the next step (coupling with bromoacetic acid) shows that the cis isomer was present.
17. 2O) might take place during mass spectrometry to give the α,β-unsaturated ketone.