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Search results for: ozonolysis

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... to the lactone 4, to give 6 as a mixture of diastereomers. After ozonolysis and protection, the lactone 7 was opened with dimethyl amine. At this ...
URL: http://www.organic-chemistry.org/Highlights/2017/06March.shtm
... Protection followed by the addition of 1-propyne 7 gave the crystalline tertiary alcohol 8. Ozonolysis set the stage for the addition of ethoxyacetylene 9 to give an intermediate that ...
URL: http://www.organic-chemistry.org/Highlights/2017/07August.shtm
... lipophillic sidechain from geraniol. They were able to extend the sidechain with a bit ozonolysis, and then a Wittig to put in the more removed diene. The ...
URL: http://www.organic-chemistry.org/totalsynthesis/totsyn02/papulacandin-d-denmark.shtm
... desymmetrisation. The symmetrical tetraol substrate for this was achieved very quickly, using an ozonolysis of cyclohept-5-ene-syn-1,3-diol, and indium mediated allylation followed by metathesis, completing ...
URL: http://www.organic-chemistry.org/totalsynthesis/totsyn02/phorboxazole-b-burke.shtm
... was the chain reduction of an aldehyde by formation of the corresponding silyl enol-ether and ozonolysis. Such a simple method, it must have been done before- but ...
URL: http://www.organic-chemistry.org/totalsynthesis/totsyn03/azadirachtin-ley.shtm
... . Lett., 2008, 10, 4037-4040. Key Words Ullmann Coupling, Ozonolysis, Ozone, Azetidines, ?-Lactams ID: J54-Y2006-3680 ...
URL: http://www.organic-chemistry.org/abstracts/lit1/490.shtm
... smart in this work was a “rearrangement” to the 6,6-spirocycle via ozonolysis of the olefin, followed by aldol condensation to give the enone. A ...
URL: http://www.organic-chemistry.org/totalsynthesis/totsyn03/majusculone-taber.shtm
... a short synthesis of the diazide shown below via a Diels-Alder reaction, followed by ozonolysis to provide both ketones. Formation of the first ring then followed by first ...
URL: http://www.organic-chemistry.org/totalsynthesis/totsyn04/axinellamine-a-b-1,9-dideoxy-pre-axinellamine-baran.shtm
... . It was quite a few steps to the next scheme- an enolisation and ozonolysis of the resulting cyclopentene allowed opening of the 5-membered ring, whilst the thioester ...
URL: http://www.organic-chemistry.org/totalsynthesis/totsyn05/haplophytine-fukuyama-tokuyama.shtm
... - a Sharpless dihydroxylation, followed by addition of periodate. Presumably the more direct ozonolysis was unselective, and attacked the freshly installed vinyl iodide. The tetrahydropyran-containing unit ...
URL: http://www.organic-chemistry.org/totalsynthesis/totsyn05/sorangicin-a-smith.shtm
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