𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Unusual reaction of an 9t11-unsaturated ring a aromatic bmd-steroid with N-bromsuccinimide

✍ Scribed by Jordan Zjawiony; Henryk Zaya̧c

Publisher
Elsevier Science
Year
1978
Tongue
French
Weight
258 KB
Volume
19
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis

We have been interested' in the study of the reactivity of 17~4_, 20;20,21-bismethylenedioxy-l9-norpregns-l,3,5(10),9(l1~ -tetraen-3-yl methyl ether(I)* In the present communication we wish to report an unusual reaotion aourse Of(l) with I-bromsuco$ni&de, When (I) was refluxed with NBS in CC14 solution in the presence of azobieisobutyronitrile (AIBN) for 10 minute8 a complex mixture ~88 obtained. Repeated chromatography and crystallization from methanol hucnished five compounds (II-VII, whose 8i2FUCm coala be deduced from their analytical and spectral characteristics. The result8 are depioted in chart 1, and the physical oharacteristics of the oompounds (II-VI) are su.mmarised below:

📜 SIMILAR VOLUMES

An unusual cleavage of ring D in Δ14-17-
An unusual cleavage of ring D in Δ14-17-keto steroid after a reaction with alkaline hydrogen peroxide
✍ Meir Bialer 📂 Article 📅 1981 🏛 Elsevier Science 🌐 French ⚖ 135 KB

Three new products of ring D cleavage of 38-acetoxy-5a-androst-14-en-17-one with alkaline B 0 2 2 were isolated and chemically identified. Ring n in 17-keto steroids is susceptible to cleavage by reaction with hydrogen peroxide, peracids or similar reagents. Reaction of 38-acetoxy-5a-androstan-17-on

Reaction of mercury (II) dibromide with
Reaction of mercury (II) dibromide with tris(n-butyl) phosphine telluride: Formation of an unusual (Hg Te)3 ring system
✍ Ling Huang; Ralph A. Zingaro; Edward A. Meyers; Joseph H. Reibenspies 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 673 KB

Tris(n-buty1)phosphine telluride (R,PTe) yields, with HgBr, from acetone solution, a very thermally and air sensitive crystalline solid. This solid has been identified as (HgBr,), . (TePR,),. X-ray diffraction analysis reveals that this compound contains a dimeric cation, [(HgTePR,),BrJ: +, in which