Ein 1,3,5-Triphosphinantriium-Ion
✍ Scribed by Dr. Ekaterina Gorbunowa; Dr. Gernot Heckmann; Prof. Dr. Ekkehard Fluck; Prof. Dr. Matthias Westerhausen; Prof. Dr. Rudolf Janoschek
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 278 KB
- Volume
- 109
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
One example each is given for the reaction of brornoacetylenes and ethynyl-phenyliodoniurn tosylates with bis(dipheny1 phosphino)methane. The yellow crystalline 1 :I -addition products are diphospholiurn salts. They readily and selectively hydrolyze to give 2- phosphinoylethenyl phosphoniurn salts.
Enolat 15 mit dem in situ hergestellten Benzyloxymethyliodid alkyliert. In dem mit einer Selektivitat'lS1 von nur 3 :2 erhaltenen Alkylierungsprodukt 16 ist die Benzyloxymethylgruppe nach dem '3C-NMR-Spektruml'41 ubenviegend cis zum Ethylrest am Dioxolanring eingetreten. Nach Verseifen zur Carbonsau
## Abstract It has been shown that the reaction of the title ketone with phosphorous pentachloride leads to regiospecific chlorine transfer to the diene moiety of the molecule, leaving the carbonyl function intact. Attempted acetalization with ethylene glycol did not give the dioxolane but rather 1