Boord olefin synthesis - Wikiwand
Boord olefin synthesis - Wikidata
Meaning of Boord Olefin Synthesis - English-Urdu …
The Boord olefin synthesis is an organic reaction forming alkenes from ethers carrying a halogen atom 2 carbons removed from the oxygen atom (β-halo-ethers) using a metal such as magnesium or zinc.
Unfortunately the stereoselectivity in the Boord olefin synthesis is poor, giving mixtures of -and -olefins.],,, This also applies to the and -2-methyl-3-chlorotetrahydrofuran.[Crombie, 1985] On the other hand ring scission of both the -and -2-methyl-3-chlorotetrahydropyran (5-6) is highly stereoselective for -olefinic alcohol 7.,,
(the Boord olefin synthesis) and esters (ester pyrolysis)
Reaction of an organometallic compound with an -halo ether is the key step in the Boord olefin synthesis.,, This olefin synthesis show a great flexibility and has been used to synthesize a number of different olefins, e.g. 1,4-pentadiene 4. The requisite -bromo ether 2 was prepared by condensation of acetaldehyde with ethanol in the presence of HCl gas, followed by treatment with bromine. In addition to -bromination of the ether 1 the -chloro group was substituted by bromine. After introduction of an -alkyl group by means of a Grignard reagent, the -bromo ether 2 was cleaved by Zn.
alpha olefin; Amylenes; Boord synthesis;
Boord olefin synthesis (10 F) ..
Reaction of a -halo ethers with main group organometallics …
Reaction of an organometallic compound with an a-halo ether is the key step in the Boord olefin synthesis ..
Alkylation of silyl enol ethers (30) Alkynyltin ..
Meaning and Translation of Boord Olefin Synthesis in Urdu Script and Roman Urdu with Reference and Related Words
52, 651 (1930); 53, 1505 (1931); 55, 3293 (1933); H
Boord Olefin Synthesis
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