𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A simple and convenient method for the preparation of α-substituted-α-diazoesters

✍ Scribed by Noro Takamura; Tomishige Mizoguchi; Kenji Koga; Shun-ichi Yamada


Publisher
Elsevier Science
Year
1971
Tongue
French
Weight
196 KB
Volume
12
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


The first synthesis of diazoesters by direct diazotization of amino acid esters was reported by Curtius I,*) around 1900. Although this method is well suited for the preparation of diazoacetic ester, 3) it is generally inapplicable to the syntheses of a-substituted-a-diazoesters (I),*) because of very low yields * To whom inquiries may be addressed.


📜 SIMILAR VOLUMES


A facile protocol for the convenient pre
✍ Zhenjun Diwu; Christopher Beachdel; Dieter H. Klaubert 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 288 KB

Amino-substituted aryhnethylketones are selectively brominated in sulfuric acid to afford the corresponding dibromomethylarylketones that are then debrominated with diethylphosphite to give the desired bromomethylarylketones in excellent yield.