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pentadiene मीनिंग इन हिंदी
pentadiene उदाहरण वाक्य
उदाहरण वाक्य
अधिक: आगे- The pentadiene manifests as a typical odor of kerosene or petroleum.
- An equal amount of asymmetric pentadiene-pentadiene-acetylene compound ( "'4b "') is formed and discarded.
- An equal amount of asymmetric pentadiene-pentadiene-acetylene compound ( "'4b "') is formed and discarded.
- Some molds ( notably some " Trichoderma " and " Penicillium " strains ) and yeasts are able to detoxify sorbates by decarboxylation, producing piperylene ( 1, 3-pentadiene ).
- Examples are the synthesis of acrylic acid from ethyl acrylate at 590 �C, the synthesis of 1, 4-pentadiene from 1, 5-pentanediol diacetate at 575 �C or the construction of a cyclobutene framework at 700 �C
- In the case of a [ 1, 5 ] shift on pentadiene, the HOMO of the sigma bond ( i . e . a constructive bond ) and the LUMO of butadiene on the remaining 4 carbons is observed.
- In the example of a [ 1, 5 ] shift in pentadiene, if there is a suprafacial shift, there is 6 e " moving suprafacially and none moving antarafacially, implying this reaction is allowed by the Woodward Hoffmann rules.
- In the first leg of the procedure two molecules of cyclopentadiene "'1 "'are tandem Diels Alder reaction with dimethyl acetylenedicarboxylate "'3 "'with desired sequence pentadiene-acetylene-pentadiene as in symmetrical adduct "'4 " '.
- In the first leg of the procedure two molecules of cyclopentadiene "'1 "'are tandem Diels Alder reaction with dimethyl acetylenedicarboxylate "'3 "'with desired sequence pentadiene-acetylene-pentadiene as in symmetrical adduct "'4 " '.
- Soc ., 1970, 92, 6259-6267 Two further early examples were the rearrangement of 1, 1, 5, 5-tetraphenyl-3, 3-dimethyl-1, 4-pentadiene ( the " Mariano " molecule ) and the rearrangement of barrelene to semibullvalene.