𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Dioxirane Oxidation of 3β-Substituted Δ5-Steroids

✍ Scribed by Edward J. Parish; Zhihai Qiu

Publisher
John Wiley and Sons
Year
2005
Weight
8 KB
Volume
36
Category
Article
ISSN
0931-7597

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

A novel fragmentation of trimethylsilyl
A novel fragmentation of trimethylsilyl ethers of 3β-hydroxy-Δ5-steroids
✍ Ingemar Björkhem; Jan-Årke Gustafsson; Jan Sjövall 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 296 KB

## Abstract An ion formed by loss of 56 mass units from the molecular ion is often seen in mass spectra of trimethylsilyl ethers of C~19~ and C~21~ steroids having a 3β‐hydroxy‐Δ^5^ structure and an oxo group at C‐17 or C‐20. The nature of this fragment was investigated by the use of perdeuteriotri

Absorption spectra of Δ5-3β-hydroxy ster
Absorption spectra of Δ5-3β-hydroxy steroids in two reagents
✍ Alfred M. Bongiovanni 📂 Article 📅 1965 🏛 Elsevier Science 🌐 English ⚖ 277 KB

In the course of studies of A5-3P-hydroxy steroids in human urine, the absorption spectra of these compounds in two sulfuric acid reagents proved of value in arriving at their identification (1). Wilson (2) has previously reported spectra of 11 steroids in sulfuric acid reagents. Smith et al. ( 3) h

A Colorimetric Assay Method for 3β-Hydro
A Colorimetric Assay Method for 3β-Hydroxy-Δ5-steroid Dehydrogenase
✍ T. Shivanandappa; S. Venkatesh 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 90 KB

tissues such as adrenal, ovary, testis, and placenta. 3b-Hydroxy-D 5 -steroid dehydrogenase is an im-It is a microsomal NAD-dependent enzyme that catportant enzyme of steroid hormone biosynthesis alyzes the conversion of pregnenolone to progesterpresent in steroidogenic tissues like adrenal, testis,

Mass spectra of the trimethylsilyl ether
Mass spectra of the trimethylsilyl ethers of some 3β-hydroxy-Δ5-C21 steroids
✍ D. J. Harvey; B. S. Middleditch; C. J. W. Brooks 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English

The mass spectra of the trimethylsilyl derivatives of 22 3P-hydroxy-A5-pregnenes have been examined with the aid of deuterium labelling and high resolution mass measurements. The influence of additional hydroxy and keto substituents on the characteristic fragment ions is discussed and fragmentation