𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Sequential Wittig-oxyanion accelerated Cope reactions of 2,2,2-triphenyl-5-vinyl-1,2.lambda.5-oxaphospholane

✍ Scribed by Enholm, Eric J.; Satici, Hikmet; Prasad, Girija

Book ID
126438245
Publisher
American Chemical Society
Year
1990
Tongue
English
Weight
785 KB
Volume
55
Category
Article
ISSN
0022-3263

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

An efficient synthesis of (R)-(+)-recife
An efficient synthesis of (R)-(+)-recifeiolide and related macrolides by using enantiomerically pure (R)-(βˆ’)-5-methyl-2,2,2-triphenyl-1,2Ξ»5-oxaphospholane
✍ Kentaro Okuma; Syun-ichi Hirabayashi; Masaaki Ono; Kosei Shioji; Haruo Matsuyama πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 French βš– 537 KB

E-(R)-(+)-8-Dodece-ll-olide, which is known as recifeiolide, was synthesized by a six-step reaction starting from (R)-(+)-propene oxide in a total yield of 53 %. The key step of this synthesis is the preparation of (R)-(-)-methyl 11-hydroxy-8-dodecenate using (R)-(-)-5-methyl-2,2,2-triphenyl-t,2X 5o

Stereochemistry of 1,2-Oxaphospholanes,
Stereochemistry of 1,2-Oxaphospholanes, VIII. Synthesis, Stereochemistry, and Ring Opening Reactions of Diastereomeric 3-Hydroxy-2-methoxy-5-methyl-1,2-oxaphospholan-2-ones
✍ WrΓ³blewski, Andrzej E. πŸ“‚ Article πŸ“… 1986 πŸ› John Wiley and Sons 🌐 English βš– 511 KB

Addition of dimethyl phosphonate to acetaldol gives a 3 : 7 mixture of diastereomeric dimethyl (1,3-dihydroxybutyl)phosphonates 3 and 4. The relative configurations at C-I and C-3 in these diols were established by the 13C NMR data of their 0-benzylidene derivatives. Axial preference-for the dimetho