## Abstract A series of thirteen ^15^Nβenriched __N__βaryl imines derived from benzaldehydes and acetophenones have been prepared and examined by ^13^C and ^1^H NMR. Preferred conformations of the Cβarvl and __N__βaryl rings have been deduced from ^13^C chemical shifts and ^13^Cβ^15^N couplings. Ev
Stereochemistry of aplidiasphingosine as proposed by the asymmetric synthesis and 13c-nmr study of sphingosine relatives
β Scribed by Kenji Mori; Takeaki Urnemura
- Book ID
- 104235276
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- French
- Weight
- 235 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
The Sharpless asymmetric epoxidation was used for the synthesis of D-erythro-dihydrosphingosine triacetate and (22, dimethyl-8-decene-1,3-diol, 35, 5R)-2-acetamino-5,9whose 13C-NMR study couplea with biogenetic consideration enabled us to propose (22, aplidiasphingosine.
π SIMILAR VOLUMES
The reaction of 2,6-diarylidenecyclohexanones with hydrazine hydrate in glacial acetic acid resulted in the formation of diastereomers of (E)-2-acetyl-3-aryl-7-arylidene-3,3a,4,5,6,7-hexahydroindazoles. The relative conΓgurations of these diastereomers were unambiguously assigned using 1H and 13C NM