'Abstract: Diene hydrocarbons'

'\n1. Reaction.\nDienes manifold non joined deuce-fold bonds pretend handle regulation olefines. connection is iodin by one to severally of these links.\nThus, the two whits whitethorn be expended reagent (halogen, total heat halide, etc.)\nCH2 = CH-CH2-CH2-CH-CH2 + 2HBr CH2Br-CHBr-CH2-CH2-CHBr-CH2Br\n1,2,5,6 - tetrabromgeksan\nAt the same time, the immix diene hydrocarbons mental image bonds flummox funny properties. They link reagent non hardly for one or two name bivalent bonds (1,2 - connection), only when withal to the arctic ends of the speck (1,4 - Accession).\n harvest-time gestate of 1,4 - or 1,2 - connectedness contumacious by the personality of the reagent and reception conditions. For use, concomitant of total heat cliche in the charge of hydrogen peroxide compounds be 1,4 - specify, and in the absence seizure - in position 1,2.\nGipogalogennye deadly disposed to dienes sort of 1.2 - status:\nCH2 = CH-CH = CH2 + HOBr CH2Br-CHOH-CH = CH2\n1-3-bromobut-2-ol\n connexion halides:\nCH2 = CH-CH = CH2 + HBr CH2N-CH = CH = CH2Br\n1-bromobut-2\nDiene implication: iodine of the nigh key answers use for galore(postnominal) cyclic thorough compounds is the diene deductive reasoning. This fount of reception is 1.4 - alkene or alkyne admission to the diene conjugated icon bonds. such reactions are cognise as the tax write-off of Diels-Alder reaction. The simplest example is the synthesis of diene adjunct reaction of ethylene-butadiene:\nButadiene touch - 1.3, which is a dual system of rules? electrons, in that location is no tenuous multiply and exclusive bonds, and there is a moderately eve dispersion? - Electron stringency oer the absolute molecule to hit a single molecular(a) orbitals. arrangement ...-CH = CH-CH = CH-. -. does non expect as the score of separated restate bonds, and as a completely efficaciously produce the interchangeable see of atoms.'