Efficient synthesis of 4-ethenylidene-2-oxazolidinones via palladium-catalyzed aminocyclization of 2-butyn-1,4-diol biscarbamates
โ Scribed by Masanari Kimura; Yoshinori Wakamiya; Yoshikazu Horino; Yoshinao Tamaru
- Book ID
- 104257152
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- French
- Weight
- 221 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0040-4039
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๐ SIMILAR VOLUMES
Hydrogenation of 2-butyne-1,4-diol (B 3 D) using 1% Pt/CaCO 3 catalyst was carried out to give 2-butene-1,4-diol (B 2 D) or butane-1,4-diol (B 1 D) selectively or a mixture of two diols eliminating the formation of acetal, aldehyde, and alcohols as side products. In presence of ammonia, nearly compl
The carbonylation of the substituted 2-butyne-1,4-diols, RArC(OH)โกC(OH)ArR (Ar, 2,5-dimethylthienyl; R, alkyl) was studied by using Pd(OAc) 2 /I 2 as the catalyst in benzene under pressure. The diols bearing methyl or isopropyl group as the alkyl substituent gave photochromic fulgide (4a or 4b). On