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The chemical behavior of 2-methylene-2,3-dihydro-3-furanones

✍ Scribed by N. M. Igidov; E. N. Kozminykh; G. A. Shavkunova; V. O. Kozminykh; E. S. Berezina

Book ID
112387883
Publisher
Springer
Year
1995
Tongue
English
Weight
302 KB
Volume
44
Category
Article
ISSN
1573-9171

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✍ Štverková, Slávka ;Žák, Zdirad ;Jonas, Jaroslav 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 397 KB

## Abstract Substituted 4,5‐dihydro‐3‐methylene‐2(3__H__)‐furanones 1 react as dipolarophiles with diphenylnitrilimine to give the corresponding spiro[furan‐pyrazolin]ones 2. From the compound 1a, 1,3‐diphenyl‐7‐oxa‐1,2‐diazaspiro[4,4]non‐2‐en‐6‐one (2a) is formed. In the other cases, a primarily f