## Abstract Diels–Alder cycloaddition of a mixture of 1‐ and 2‐methylcyclopentadienes (1a and 1b, respectively) to 2‐methoxy‐__p__‐benzoquinone (2) gave a mixture of isomeric __endo__ [4 + 2] cycloadducts (3a–3d). Fractional recrystallization of this product mixture from EtOAc‐hexane gave 6‐methoxy
Synthesis and base promoted intramolecular nucleophilic reaction of 8-hydroxy-1,2,3,4-tetrachloro-9,9-dimethoxy-1α,4α,4aα,6,7,8β,8aα-hexahydro-1,4-methanonaphthalene-5(1H)-one
✍ Scribed by Simon G. Bott; Alan P. Marchand; Jennifer C. Bolin; Yanjun Wang; Annavajhula Durga Prasad; Dongxia Xing; L. Kathleen Talafuse; William H. Watson; Susan A. Bourne; Thomas F. Carlson
- Publisher
- Springer
- Year
- 1995
- Tongue
- English
- Weight
- 776 KB
- Volume
- 25
- Category
- Article
- ISSN
- 1572-8854
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Dehalogenation of the mixed anhydride 6 of 11-bromotricyclo[4.4.1 .0',6]undeca-3,8-diene-l 1-carboxylic acid (4) and of diethyl hydrogen phosphate with Zn-Ag couple in THF gave the dispiro-fused dipropellane 8 ( I , l", 4,4,5,5", 8,8"-octahydrodispiro[[4a, 8a]methanonaphthalene-9,1 '-cyclobutane-3',
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