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Diastereoselectivity cuprates

Stereoselective addition of cuprates to ji-alkoxy enoates of type 49 [17] isee Sdiemes 6.8 and 6.9) bas been used in die crrnstruction of polypropionate-type structures. Tlius, a sequence of diastereoselective cuprate addition, etiolate for-ruabon, and diastereoselective oxygenation widi Davis s reagent bas been applied iteratively to provide a Cio segment of Rifaruycin S i60) [ 17c, d]. [Pg.193]

A beautiful illustration of the power of diastereoselective cuprate addition to cy-dopentenone systems is given in the course of the synthesis of the prostaglandin E2 (PGE2) (Scheme 6.2) [7j. Thus, addition of the functionalized organocuprate... [Pg.188]

Rifamycin S Scheme 6.9. Construction of the polypropionate segment of Rifamycin S through iterative diastereoselective cuprate addition to acyclic enoates. a) Me2CuLi, TMSCI,... [Pg.194]

Scheme 6.12. Diastereoselective cuprate addition to Z enone 61 - key step towards the synthesis of iso[7]-levuglandin D2. (TBS = t-butyidimethylsilyl)... Scheme 6.12. Diastereoselective cuprate addition to Z enone 61 - key step towards the synthesis of iso[7]-levuglandin D2. (TBS = t-butyidimethylsilyl)...
Scheme 6.16. Diastereoselective cuprate addition to y-phthalimido enoate 80. Scheme 6.16. Diastereoselective cuprate addition to y-phthalimido enoate 80.
Scheme 6.20. Diastereoselective cuprate addition to steroidal enone 95 (MOM = methoxymethyl). Scheme 6.20. Diastereoselective cuprate addition to steroidal enone 95 (MOM = methoxymethyl).
Tab. 6.2. HMPT = Results of diastereoselective cuprate additions to enone hexamethylphosphoric triamide). 95 (TMS = trimethylsilyl,... Tab. 6.2. HMPT = Results of diastereoselective cuprate additions to enone hexamethylphosphoric triamide). 95 (TMS = trimethylsilyl,...
Scheme 6.23. Diastereoselective cuprate addition to <5-functionalized enoates 103-107. Scheme 6.23. Diastereoselective cuprate addition to <5-functionalized enoates 103-107.
Tab. 6.3. Results of diastereoselective cuprate addition to <5-functionalized enoates 103-107 (TBS = t-butyidimethylsilyl, Bn = benzyl). Tab. 6.3. Results of diastereoselective cuprate addition to <5-functionalized enoates 103-107 (TBS = t-butyidimethylsilyl, Bn = benzyl).
Scheme 6.24. Diastereoselective cuprate addition to -carbamate-functionalized enoate 113. Scheme 6.24. Diastereoselective cuprate addition to -carbamate-functionalized enoate 113.
Ar= Ph, p-MePh, o-MePh R = allyl, Me, Ph, cyclopropyl, n-butyl Scheme 6.28. Diastereoselective cuprate addition to a planar chiral a lchromium enone complex 145. [Pg.209]

Scheme 6.29. Diastereoselective cuprate addition to chiral molybdenum Ti-allyl enone complex 147. Scheme 6.29. Diastereoselective cuprate addition to chiral molybdenum Ti-allyl enone complex 147.
Cyclic amino-carbenes, in molybdenum carbonyls, 5, 457 Cyclic bis(phosphine) dichlorides, with iron carbonyls, 6, 48 Cyclic carbenes, as gold atom ligands, 2, 289 Cyclic carbometallation, zirconium complexes, 10, 276 Cyclic carbozirconation characteristics, 10, 276 intermolecular reactions, 10, 278 intramolecular reactions, 10, 278 Cyclic dinuclear ylides, and gold , 2, 276 Cyclic 1,2-diols, intramolecular coupling to, 11, 51 Cyclic enones, diastereoselective cuprate additions, 9, 515 Cyclic esters, ring-opening polymerization, via lanthanide catalysis, 4, 145 Cyclic ethers... [Pg.88]

Among various recent applications of diastereoselective cuprate addition reactions to cyclic enones in target-oriented synthesis,81,81a 81c,83 87 the synthesis of (—)-dihydrocodeinone and (—)-morphine by Mulzer and co-work-... [Pg.515]

Diastereoselective cuprate addition to 0, -unsaturated phosphane oxide 73 (TBS= t-bulyidimethylsilyl). [Pg.196]

See other pages where Diastereoselectivity cuprates is mentioned: [Pg.188]    [Pg.196]    [Pg.197]    [Pg.198]    [Pg.196]    [Pg.197]    [Pg.198]    [Pg.102]    [Pg.514]    [Pg.195]    [Pg.196]    [Pg.197]    [Pg.197]    [Pg.198]   
See also in sourсe #XX -- [ Pg.153 ]



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