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Search results for: ring opening metathesis
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... Sm Diverse methods for medium ring synthesis. G. ... SYNTHESIS/CARBONYL ADDITION-REACTIONS/RING-OPENING REACTIONS/BOND-FORMING REACTIONS ... BARBIER-TYPE REACTIONS/ORGANIC-SYNTHESIS/RADICAL CYCLIZATION/ACID-CHLORIDES Novel ...
... build the syn-6,5-fused ring system. A regio ... amine with allyl bromide and ring-closing metathesis ; only a ... functional group transformations were then required to complete the target ...
... jacs.7b07388) the central five-membered ring of 3 by the ... for the elegant combination of naturally-occurring building blocks. With ... exception of the bromomalonate starting material, all of the ...
... stereogenic centers in one cyclopentane ring, was a significant ... the acyl oxazolidine 4 to cyclopentadiene, to give 5 ... to 1 proceeded across the open face of the bicyclic ...
... having four of the six rings of the natural product ... with high regio-and diastereocontrol. Ring-closing metathesis followed by base ... 1 with mCPBA followed by opening of the major diastereomer ...
... /ja309650u) the organocatalytic ring-opening carbonyl-olefin metathesis of cyclopropene ... /ja309650u) the organocatalytic ring-opening carbonyl-olefin metathesis of cyclopropene ... with benzaldehyde (30) to produce enal 33, ...
... took advantage of the still-substantial ring strain of the expanded ... to drive ring-opening metathesis, to give, after hydrogenation ... the lactam 17. He was able to selectively convert ...
... are efficient catalyst precursors for ring-opening metathesis polymerization, ring-closing ... and enyne metathesis of a variety of substrates. see ... are efficient catalyst precursors for ring-opening metathesis polymerization, ring-closing ...
... recovered and reused for the ring-closing metathesis of 2 to ... 10.1021/ol101455c) the cyclopropene 8 in cross metathesis ... to give 10. A. Srikrishna of the Indian ...
... ), the central cyclopentane ring of which is unusual ... ) pressed the limits of ring-closing metathesis . The efficient ... 9 ), the central cyclopentane ring of which is ...