A simple method for the preparation of various 1-oxo-hydrindene-2-acetic and -propionic acids. Valuable precursors of strigol and its analogues
✍ Scribed by István Kádas; Géza Árvai; Lászlo Tőke; Gábor Tóth; Áron Szöllősy; Mária Bihari
- Book ID
- 104204310
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- French
- Weight
- 898 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0040-4020
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✦ Synopsis
Abrtra~t: An improved annulaiion sequence is presented, making use of the one-pot cyclization of S-nitqentan-2one and cyclopeni-2-enone diesters to aflord 7-methyl-4-nitro-l-oxohydrindene derivatives. Functional group elaborations of these intermediates lead to a series of the title compounds, which could be readily converted to the tricyclic moieties of strigol and its analogaes of biological importance.
📜 SIMILAR VOLUMES
## Abstract α‐Acyloxy aldehydes (**2a,b**) react with 1,1‐dimethoxypropene (**1**) in the presence of ZnCl~2~ to yield 2,2‐dimethoxy‐3‐methyloxetanes (**3a,b**). Stronger electron‐withdraxing acyl groups are necessary for the analogous conversion ofα‐acyloxy ketones (**2c,d,e**). Hydrolysis of the