𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Cleavage of ring A in 5β-steroids

✍ Scribed by J. Kenneth Paisley; Larry Weiler

Book ID
108383290
Publisher
Elsevier Science
Year
1972
Tongue
French
Weight
172 KB
Volume
13
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Steroids, L. Ring D Cleavage of D-Trisub
Steroids, L. Ring D Cleavage of D-Trisubstituted Steroids
✍ Vincze, Irén ;Somlai, Csaba ;Schneider, Gyula 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 526 KB

## Abstract In alkaline medium, 17β‐hydroxy‐15‐(hydroxymethylene)androst‐5‐en‐16‐one (2a) is cleaved in two ways to give D‐__seco__ compounds. Dilute bases in protic solvents cause 1,3‐dicarbonyl splitting to the 15‐formyl‐15,16‐__seco__‐16‐oic acid 3, while the use of sodium methanolate in benzene

Facile Synthesis of a Steroidal Diyne vi
Facile Synthesis of a Steroidal Diyne via D-ring Cleavage
✍ Shahadat Ahmed; Romesh Chandra Boruah 📂 Article 📅 1997 🏛 Elsevier Science 🌐 French ⚖ 325 KB

Abstmct: A ba.wpromotedcawersicn ofa tidal B@ intoa formyl alkyna andits convmien to a stemidal diyw is deaeribed. @ 1997Published by ElsevierScienceLtd. The enediyne antitumo r antibiotics derived fiombacterial sourceshavegenerated widespread interedd ueto DNA cleavage.However,the chemicaliuatsbili