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Cyclization reactions of an allenic oxoquinazoline

✍ Scribed by Conny Bogentoft; Örjan Ericsson; P»l Stenberg; Bengt Danielsson

Publisher
Elsevier Science
Year
1969
Tongue
French
Weight
172 KB
Volume
10
Category
Article
ISSN
0040-4039

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✦ Synopsis

Attempts to reduce the carbonyl group of 3-propargyl-3,4-dihydro-4-oxoquinaxollne CIl with

LiAlH4 only afforded the allene II [cf. cl)]. liken I was reacted with sodium in ethanol, the same rearrangement took place and the allene II, together with some other products, was isolated

📜 SIMILAR VOLUMES

Intramolecular cyclization of an allenic
Intramolecular cyclization of an allenic grignard reagent
✍ Herman G. Richey Jr.; Walter C. Kossa Jr. 📂 Article 📅 1969 🏛 Elsevier Science 🌐 French ⚖ 102 KB

A ready intramolecular addition of the Grignard function of the 3,4-pentadien-l-y1 Grignard reagent (2) to an allenic double bond furnished the l-cyclopropylvinyl Grignard reagent (5). \* The structure of this new compound is consistent with its elemental analysis and ir and nmr spectra.

Cyclizations of Allenes
Cyclizations of Allenes
✍ Marcus A. Tius 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 8 KB