𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The STOBBE condensation. X. The cyclisation of (E)-3-methoxycarbonyl-4-(5′-methyl-2′-furyl)-but-3-enoic acid, and (E)−3-methoxycarbonyl-4-(2′-furyl)-pent-3-enoic acid, to Benzofuran Derivatives

✍ Scribed by Mrs. Dr. S. M. Abdel-Wahhab; Dr. N. R. El-Rayyes


Book ID
105351962
Publisher
John Wiley and Sons
Year
1972
Tongue
English
Weight
392 KB
Volume
314
Category
Article
ISSN
1615-4150

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📜 SIMILAR VOLUMES


The STOBBE Condensation, Part IX. The cy
✍ Dr. S. M. Abdel-Wahhab (Mrs.); Dr. N. R. El-Rayyes 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 English ⚖ 360 KB

## Abstract The condensation of 5‐methyl‐thiophen‐2‐aldehyde with dimethyl succinate in the presence of potassium t‐butoxide or sodium hydride gave predominantly (E)‐3‐methoxy‐carbonyl‐4‐(5′‐methyl‐2′‐thienyl)‐but‐3‐enoic acid **1a**, whose configuration is proved by cyclisation with sodium acetate

Application of the gold(I)-Catalyzed ald
✍ Antonio Togni; Stephen D. Pastor; Grety Rihs 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 German ⚖ 507 KB

Introduction. ~ Stereoselective C-C bond forming reactions catalyzed by chiral transition-metal complexes are a topic of fundamental importance [l]. In 1986, Hayashi and Zto reported an elegant asymmetric synthesis of dihydrooxazoles by an efficient gold(1)-catalyzed coupling of aldehydes with 2-iso

The efficient stereoselective synthesis
✍ Shigekazu Sasaki; Yasumasa Hamada; Takayuki Shioiri 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 216 KB

The title acid, a component of microsclerodermins of marine sponge origin having five consecutive stereogenic centers, was efficiently synthesized as its protected form 1 from the alcohol 5 utilizing the stereoselective addition of anisole to the acetylenic triple bond and the anti-aldol reaction as