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Hetero-Diels−Alder Reactions of α-Aryl-β-monohalo-α-nitrosoethylenes: Diastereoselective Synthesis of 6-Substituted 3-Aryl-4-halo-5,6-dihydro-4 H -1,2-oxazines

✍ Scribed by Yoon, Sung Chel; Kim, Kyongtae; Park, Yung Ja


Book ID
126058004
Publisher
American Chemical Society
Year
2001
Tongue
English
Weight
101 KB
Volume
66
Category
Article
ISSN
0022-3263

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Synthesis of trialkylsiloxy-substituted
✍ Hippeli, Claudia ;Reißig, Hans-Ulrich 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 857 KB

## Abstract A variety of 5,6‐dihydro‐4__H__‐1,2‐oxazines 3 and 4 is prepared in good yields from silyl enol ethers 1 and nitroso alkenes 2a or 2b, respectively. A systematic variation of substituents reveals preparative scope and limitations of this hetero Diels‐Alder reaction with inverse electron