𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Stereoselective reactions of N-acyl-N,O-acetals with 2-(trimethysilyloxy)furan

✍ Scribed by Kenn E. Harding; M. Todd Coleman; Lee T. Liu


Publisher
Elsevier Science
Year
1991
Tongue
French
Weight
262 KB
Volume
32
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


Reaction of ocyclrc chtral N-acyl-N,O-metals with 2-(aanethylsr~ylo~)~~~n and EF, Et20 produces 4-(nartnoalkyl)-2-bnten-4-ali~,~ in 3070 to 6270 y&d and vnrinbla dmrtermmeric excesses of the syn (tftrro) stereoisomer. Selectivity is dependent on the structure ofN-ncyl-N,O-metal used.


📜 SIMILAR VOLUMES


Reaction of 2-acyl-6-methylbenzo[b]furan
✍ Valery S. Tolkunov; Igor F. Perepichka; Vladimir I. Dulenko 📂 Article 📅 2005 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 157 KB

## Abstract Reaction of 2‐acyl‐6‐methylbenzo[__b__]furan‐3‐acetic acids and their derivatives such as amides and esters with hydrazine does not give expected 1‐alkyl‐5__H__‐benzofuro[2,3‐__e__]diazepin‐4‐ones ones but results in 2‐amino‐7‐methyl‐2__H__‐benzo[4,5]furo[2,3‐c]pyridin‐3‐ones or (3‐R‐6‐

A convenient synthesis of 2′-O-acetal-N2
✍ C. H. M. Verdegaal; P. L. Jansse; J. F. M. de Rooij; G. Veeneman; J. H. van Boom 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 620 KB

## Abstract The partially protected and crystalline 2′‐__O__‐levulinoyl‐3′5′‐__O__‐(tetraisopropyldisiloxane‐1,3‐diyl)guanosine derivative (**4**) serves as a key intermediate for the synthesis of 2′‐__O__‐acetal‐__N__^2^‐acylriboguanosines **1c**. Acylation of **4** with diphenylacetic anhydride g