ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] In order to study the effect of the aromatic ring current on the H1 nuclear magnetic resonance splitting we have synthesized a series of phthalides (I) and tetrachloro-phthalides (II) substituted with alkyl groups in the 3-positions. Phthalides were selected because of their rigid structure and the ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/201388a0
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