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Search results for: ring opening metathesis
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... allyl silane 9 followed by ring-closing metathesis leads to the ... such as 8 are readily opened both by carbon and ... silane 9 followed by ring-closing metathesis leads to the highly-functionalized ...
... gold catalyst for the enantioselective ring expansion of a prochiral ... such as 11 to the cyclopentanone 12. Shigeki Matsunaga ... conditions for effecting Ti-mediated intramolecular metathesis between an alkene and ...
... Grignard reagent 7 followed by ring-closing metathesis and oxidation with ... free acid, that then opened the epoxide, completing ... assembly of 18. Deprotection delivered tetrodotoxin (4 ) ...
... intramolecular alkylation of an aromatic ring. Applied to the ... for R2 = H, opening access to rare 2 ... The Grubbs second generation alkene metathesis catalyst (" G2 ...
... of 1. The Ru-catalyzed ring-closing metathesis of 1 proceeded ... of 1 began with commercial cyclopentane-1,3-dione (4 ... 1. The Ru-catalyzed ring-closing metathesis of 1 proceeded smoothly ...
... secondary alcohol on the fifteen-membered ring, the absolute configuration ... enol as the nucleophile, opening of racemic isoprene monoepoxide ... preferred substrate for the Ru metathesis catalyst. No cyclization ...
... , allowing the transfer of ring to side chain stereocontrol ... prepared from epichlorohydrin 12. Opening of the epoxide with ... . Remarkably, Ru-catalyzed cross metathesis of the derived alkene ...
... the stereogenic centers in a ring. Hisashi Yamamoto of ... chiral Gd catalyst for the opening of meso aziridines such ... 19 to the amido nitrile 20 in high ee. ...
... followed by insertion of the ester-bearing alkene into the C-Rh ... the mechanism, the enantiomerically-pure cyclopentane 2, having four ... 7, which on cross metathesis with methacrolein gave the ...
... by the liberated carboxylate and ring-closing alkene metathesis led to ... saponification followed by intramolecular epoxide opening by the liberated carboxylate ... ring-closing alkene metathesis led to the lactone 16. This ...
