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Substituent Effect on the Competition between Hetero-Diels-Alder and Cheletropic Additions of Sulfur Dioxide to 1-Substituted Buta-1,3-dienes

✍ Scribed by Elena Roversi; Frédéric Monnat; Pierre Vogel; Kurt Schenk; Pietro Roversi


Publisher
John Wiley and Sons
Year
2002
Tongue
German
Weight
468 KB
Volume
85
Category
Article
ISSN
0018-019X

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Ab initio calcdations at the MP2/6-31G\*//HF/3-21G\* level have been carried out to study Eels-Alder reactions of 2-substituted-1,3-dienes with s u l h dioxide. The CH ... 0 electrostatic interaction detected in some of the transition structures located could be decisive in the control of the exo/en