Geeignete Kristalle wurden durch Umkristallisieren aus Et,O gewonnen. Die Substanz (C,,H,,O,NS, Kristallabmessungen ca. 0,2 x 0,2 x 0,3 mm) kristallisiert in der monoklinen Raumgruppe P2, (Nr. 4),
Enantioselektive Synthese von α-Phosphinoketonen. Vorläufige Mitteilung
✍ Scribed by Dieter Enders; Thorsten Berg; Gerhard Raabe; Jan Runsink
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- German
- Weight
- 306 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
**Synthesis of (±)‐α‐Chamigrene** __Cis__‐ and __trans__‐β‐ionol (__cis__ and __trans__‐**1**) underwent acid catalysed dehydration to a mixture of the tetraenes **2–5** in 70–80% yield (Table 1). Irradiation of this mixtures made the 6‐(__Z__), 8‐(__Z__)‐isomer **5** accessible (columns 3 and 4 in
## Abstract 1α‐hydroxycholesterol (**4a**) was synthesized from cholesterol and transformed __via__ its diacetyl derivative **4b** into 1α, 3β‐diacetoxycholesta‐5, 7‐diene (**6b**). Irradiation of the ring‐B‐diene **6b** followed by thermal isomerization and saponification gave 1α‐hydroxycholecalci
**Nickel‐catalysed Synthesis of α‐Nornicotines** __Schiff's__ bases **1** and butadiene generally co‐oligomerize on nickel catalysts to yield octatrienyl‐substituted amines **2** and octadienyl‐substituted imines **3**. __Schiff's__ bases **4** and **5**, on the other hand, react with 1, 3‐dienes
Abgekllrzte Schreibweise entsprechend den Empfehlungen der \* IUPAC-IUB Commission on Biochemical Nomenclature v [3]. HELVETICA CWIMICA ACTA -Volumen 51, Fasciculus 4 (1968) ' ) Die Prtifung verdankcn wir Herrn 1)c. R . i \ f A I E R und Hcrrn W . ~I G N A T (CIRA AKT~ENCESELL-SCHAFT, Basel).