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ChemInform Abstract: Stereodivergent Hetero-Diels-Alder Reactions of Chiral 1-Oxa-1,3- butadienes Through a Conformational Switch Induced by Lewis Acids.

โœ Scribed by L. F. TIETZE; C. SCHNEIDER; A. GROTE


Book ID
112032103
Publisher
John Wiley and Sons
Year
2010
Weight
36 KB
Volume
27
Category
Article
ISSN
0931-7597

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Molecular switches: Calculations on the
โœ Tietze, Lutz F. ;Schulz, Gerhard ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 375 KB

## Abstract The stereodivergent facial differentiation of the intermolecular hetero Dielsโ€Alder reaction of the 1โ€oxaโ€1,3โ€butadiene 1 with 2 in the presence of trimethylsilyl trifluoromethanesulfonate (TMSโ€OTf) or Me~2~AlCl is explained on the basis of semiempirical calculations (AM1 and PM3). The