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Synthesis of (+)-2R,3R,11R,12R- and (−)-2S,3S,11S,12S-tetraphenyl-18-crown-6

✍ Scribed by F. Dietl; A. Merz; R. Tomahogh

Publisher
Elsevier Science
Year
1982
Tongue
French
Weight
202 KB
Volume
23
Category
Article
ISSN
0040-4039

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📜 SIMILAR VOLUMES

An efficient procedure for the synthesis
An efficient procedure for the synthesis and isolation of (+)-(2R,3R,11R,12R)- and (−)-(2S,3S,11S,12S)-tetraphenyl-18-crown-6
✍ John Crosby; Martin E. Fakley; Colin Gemmell; Keith Martin; Andrew Quick; Alexan 📂 Article 📅 1989 🏛 Elsevier Science 🌐 French ⚖ 326 KB

octadecanes have been preparedin single step reactions from the readily-available chiralprecursors, (RR)-and (5%).hydrobenzoins, followed by bulk isolations of the pure Id-crown-6 derivatives via their I.9 crystalline complexes with potassium nitrate (for the Uiphenyl derivative) or calcium nitrate

Synthesis of (2S,3R,11S,12R,2‴R,11‴S,12‴
Synthesis of (2S,3R,11S,12R,2‴R,11‴S,12‴R)-plakoside A, a prenylated and immunosuppressive marine galactosphingolipid with cyclopropane-containing alkyl chains
✍ Masanori Seki; Akihiro Kayo; Kenji Mori 📂 Article 📅 2001 🏛 Elsevier Science 🌐 French ⚖ 92 KB

Plakoside A (1) is a prenylated galactosphingolipid isolated from the marine sponge Plakortis simplex and is strongly immunosuppressive without cytotoxicity. (2S,3R,11S,12R,2 §R,11 §S,12 §R)-plakoside A (1) was synthesized by combining sphingosine part 16, a-hydroxy acid part 24 and prenylated sugar