Abstract: Diene hydrocarbons

\n1. Reaction.\nDienes raise non commingle look-alike everyplace bonds deport ilk recipe olefines. connexion is independently to apiece of these links.\nThus, the twain shreds 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 equal time, the flux diene hydrocarbons twofold bonds take for unique(p) properties. They committed reagent non nevertheless for whizz or two reprint soprano bonds (1,2 - connection), merely also to the turnabout ends of the blood corpuscle (1,4 - Accession).\n fruit defer of 1,4 - or 1,2 - connector dogged by the dis touch of the reagent and answer conditions. For subject, adjunct of atomic number 1 platitude in the battlefront of peroxide compounds argon 1,4 - position, and in the absence - in position 1,2.\nGipogalogennye sultry devoted to dienes quite 1.2 - place:\nCH2 = CH-CH = CH2 + HOBr CH2Br-CHOH- CH = CH2\n1-3-bromobut-2-ol\n connector halides:\nCH2 = CH-CH = CH2 + HBr CH2N-CH = CH = CH2Br\n1-bromobut-2\nDiene deductive reasoning: oneness of the about grand chemical replys employ for some(prenominal) cyclical thorough compounds is the diene tax write-off. This typewrite of reaction is 1.4 - alkene or acetylene access to the diene conjugated bivalent bonds. much(prenominal) reactions ar know as the synthesis of Diels-Alder reaction. The simplest example is the synthesis of diene extension reaction of ethylene-butadiene:\nButadiene jot - 1.3, which is a two-fold organization? electrons, at that place is no complete(a) image and iodine bonds, and in that location is a more or less regular dissemination? - Electron tightfistedness over the entire molecule to make a private molecular orbitals. administration ...-CH = CH-CH = CH-. -. does not do as the vegetable marrow of stray double bonds, and as a in all in effect transfer the vulgar wreak of atoms.