The two title compounds (1.2) have been prepared and some Diels-Alder reactions investigated.
Regio- and stereocontrolled synthesis and Diels-Alder reactions of (Z)-2-(phenylthio)-1-(trimethylsilyl)-1,3-butadiene
✍ Scribed by Shang-Shing P. Chou; Mao-Hsun Chao
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- French
- Weight
- 294 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0040-4039
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## Abstract Δ__H__^0^, Δ__S__^0^, and __K__~__p__~ have been calculated by force field methods for two prototype Diels–Alder reactions, the condensation of 1,3‐butadiene and ethylene, and the dimerization of 1,3‐butadiene. Three force field programs were employed, Allinger's MMP2, Warshel and Karpl
Azabutadienes f Isoxazoles f Tetrahydropyridines 1 Diels-Alder reactions / Sequential transformations Condensation of aldehydes 1 ae with 5-amino-3-methylisoxazole (4) gives the corresponding imines 5a-e with a 2-aza-1,3-butadiene moiety, which cyclize selctively, e.g. 5a to form the trans-fused tet