Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Butadiene H2C=CHCH

Ethylene, a widely used colorless gas with a somewhat sweet odor, acts as a simple asphyxiant and anesthetic to animals and is phytotoxic (toxic to plants). The toxicological properties of propylene (H2C=CHCH3) are very similar to those of ethylene. Colorless, odorless, gaseous 1,3-butadiene (H2C=CHCH=CH2) is an irritant to eyes and respiratory system mucous membranes at higher levels it can... [Pg.752]

FIGURE 18 6 Acrolein w (H2C=CHCH=0) is a planar molecule Oxygen and each carbon IS sp hybridized and each contributes one elec tron to a conjugated tt elec tron system analogous to that of 1 3 butadiene... [Pg.776]

Acrylonitrile 1,3-Butadiene HjOCHCN H2C=CHCH=CHa Nitrile rubber Adhesives, gasoline hoses... [Pg.1269]

Acrylonitrile 1,3-Butadiene Styrene H2CCHCN H2C=CHCH=CH2 H2CK1HC3H5 ABS (initials of monomers) Pipes, high-impact applications... [Pg.1269]

Styrene (25%) 1,3-Butadiene (75%) H2C=CHCsH5 H2C=CHCH=CHs SBR (styrene-butadiene rubber) Tires, rubber articles... [Pg.1269]

The simplest of all Diels-Alder reactions, cycloaddition of ethylene to 1,3-butadiene, does not proceed readily. It has a high activation energy and a low reaction rate. However, the cycloaddition of acrolein (H2C=CHCH=0) to 1,3-butadiene occurs readily to give a high yield of the Diels-Alder adduct at a modest temperature. [Pg.410]

Adducts result from the butadienes and 0-silyl dienolates MejSiOCH=CHCH=CH2, the former rearranging to 1,4-adducts spontaneously (excepting the adduct with 1,3-butadiene itself), while the latter lose MejSiCl, resulting in overall y-substitution of cr)9-unsaturated aldehydes. The corresponding process occurs with H2C=CH-C(OSiMe3)=CHMe and PhSeCl. ... [Pg.19]

See other pages where Butadiene H2C=CHCH is mentioned: [Pg.566]    [Pg.566]    [Pg.126]    [Pg.141]    [Pg.29]    [Pg.573]    [Pg.192]    [Pg.525]    [Pg.525]    [Pg.583]    [Pg.180]    [Pg.554]    [Pg.529]    [Pg.359]    [Pg.558]    [Pg.566]    [Pg.566]    [Pg.126]    [Pg.141]    [Pg.29]    [Pg.573]    [Pg.192]    [Pg.525]    [Pg.525]    [Pg.583]    [Pg.180]    [Pg.554]    [Pg.529]    [Pg.359]    [Pg.558]    [Pg.156]    [Pg.1202]    [Pg.786]    [Pg.63]    [Pg.1202]    [Pg.196]    [Pg.490]    [Pg.137]    [Pg.63]    [Pg.339]    [Pg.1300]    [Pg.448]    [Pg.697]    [Pg.296]    [Pg.293]    [Pg.2805]    [Pg.210]    [Pg.2804]   
See also in sourсe #XX -- [ Pg.2 , Pg.186 , Pg.209 ]



SEARCH



© 2024 chempedia.info