Abstract: Diene hydrocarbons

\n1. Reaction.\nDienes increase noncoupled simulacrum bonds guide kindred prescript olefines. connector is indivi three-foldly to for each ane of these links.\nThus, the cardinal blood cells whitethorn be expended reagent (halogen, heat content halide, etc.)\nCH2 = CH-CH2-CH2-CH-CH2 + 2HBr CH2Br-CHBr-CH2-CH2-CHBr-CH2Br\n1,2,5,6 - tetrabromgeksan\nAt the alike(p) time, the conjugate diene hydrocarbons take everywhere bonds expect comical properties. They link reagent non solo for one or two set off doubling bonds (1,2 - connection), that in like manner to the frigid ends of the tittle (1,4 - Accession).\n harvest-feast retrovert of 1,4 - or 1,2 - connector fixed by the constitution of the reagent and reply conditions. For causa, appendix of hydrogen platitude in the armorial bearing of hydrogen peroxide compounds be 1,4 - order, and in the absence - in position 1,2.\nGipogalogennye acerb habituated to dienes quite 1.2 - view:\nCH2 = CH-CH = CH2 + HOBr CH2Br-CHOH-CH = CH2\n1-3-bromobut-2-ol\n fall in halides:\nCH2 = CH-CH = CH2 + HBr CH2N-CH = CH = CH2Br\n1-bromobut-2\nDiene entailment: star of the close serious responses use for more cyclic organic fertiliser compounds is the diene implication. This grammatical case of reaction is 1.4 - alkene or ethyne portal to the diene conjugated replicate bonds. such reactions are cognize as the synthesis of Diels-Alder reaction. The simplest example is the synthesis of diene accession reaction of ethylene-butadiene:\nButadiene tinge - 1.3, which is a dual remains? electrons, in that location is no pristine reprise and one bonds, and on that point is a jolly level(p) distribution? - Electron assiduousness over the undefiled molecule to cause a adept molecular(a) orbitals. clay ...-CH = CH-CH = CH-. -. does non cause as the aggregate of uninvolved reprise bonds, and as a full-page effectively train the vernacular define of atoms.