✦ LIBER ✦

Application of L-Erythrose-Derived Nitrones in the Synthesis of Polyhydroxylated Compounds via 3,6-Dihydro-2H-1,2-oxazine Derivatives

✍ Scribed by Marcin Jasiński; Dieter Lentz; Elena Moreno-Clavijo; Hans-Ulrich Reissig

Book ID: 112082818
Publisher: John Wiley and Sons
Year: 2012
Tongue: English
Weight: 860 KB
Volume: 2012
Category: Article
ISSN: 1434-193X
DOI: 10.1002/ejoc.201200158

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Acid-Induced and Reductive Transformati

Acid-Induced and Reductive Transformations of Enantiopure 3,6-Dihydro-2H-1,2-oxazines – Synthesis of Dideoxyamino Carbohydrate Derivatives

✍ Bettina Bressel; Boris Egart; Ahmed Al-Harrasi; Robert Pulz; Hans-Ulrich Reißig; 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 314 KB

## Abstract Acid‐catalyzed transformations of carbohydrate‐derived 3,6‐dihydro‐2__H__‐1,2‐oxazines such as **1**, **5** and **13** provided a set of enantiopure furano‐1,2‐oxazines or pyrano‐1,2‐oxazines. The reaction conditions determined the degree of solvolysis of the compounds. An X‐ray analysi

Transition metal- and acid-induced trans

Transition metal- and acid-induced transformations of 6-siloxy-substituted 5,6-dihydro-4H-1,2-oxazines: Preparation of pyrroles, nitrones, 1,4-dicarbonyl compounds and derivatives thereof

✍ Hippeli, Claudia ;Zimmer, Reinhold ;Reißig, Hans-Ulrich 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 566 KB

## Abstract A variety of 6‐siloxy‐substituted 5,6‐dihydro‐4__H__‐1,2‐oxazines (abbreviation: 1,2‐oxazines) 1, 3 could be transformed into di‐ and trisubstituted pyrroles 2, 4 by means of molybdenum hexacarbonyl. The mechanism of this deoxygenating ring contraction is discussed. With two bicyclic 1,

The synthesis and ultraviolet spectra of

The synthesis and ultraviolet spectra of some N-aryl-2,3-dihydro-3-oxo-4H-1,4-oxazine derivatives

✍ Riaz F. Abdulla 📂 Article 📅 1973 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 264 KB

Synthesis of Highly Substituted 2,3-Dihy

Synthesis of Highly Substituted 2,3-Dihydro-1 H -pyrrole Derivatives via a Tandem Regioselective Addition of Nitrones to 1,3-Enynes with Subsequent Rearrangement

✍ Saravanan, Sivaperuman; Azath, Ismail Abulkalam; Muthusubramanian, Shanmugam 📂 Article 📅 2008 🏛 American Chemical Society 🌐 English ⚖ 124 KB

The formation of β-lactam derivatives an

The formation of β-lactam derivatives and a C3-symmetrical heterocycle from 5,6-dihydro-2H-1,3-oxazines

✍ Konstantina Kehagia; Alexander Dömling; Ivar Ugi 📂 Article 📅 1995 🏛 Elsevier Science 🌐 French ⚖ 267 KB

Reductive transformations of 5,6-dihydro

Reductive transformations of 5,6-dihydro-4H-1,2-oxazines: Synthesis of 4-hydroxy ketoximes,N-hydroxypyrrolidine derivatives, and other nitrogen-containing compounds

✍ Hippeli, Claudia ;Reißig, Hans-Ulrich 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 566 KB

## Abstract 6‐Siloxy‐substituted 1,2‐oxazines 1 are transformed into 4‐hydroxy ketoximes 2 by reduction with NaBH~4~ in ethanol. Reductive Beckmann rearrangement converts the oxime 2a into the 1,4‐amino alcohol 7. Diisobutylaluminum hydride (DIBAH) induces a novel reductive ring contraction of 1 to