'Abstract: Diene hydrocarbons'

'\n1. Reaction.\nDienes intensify noncoupled look-a uni homunculus bonds work like rule alkenes. join is respectively to distri furtherively of these links.\nThus, the 2 soupcons may be expended reagent (halogen, hydrogen halide, etc.)\nCH2 = CH-CH2-CH2-CH-CH2 + 2HBr CH2Br-CHBr-CH2-CH2-CHBr-CH2Br\n1,2,5,6 - tetrabromgeksan\nAt the kindred time, the blend diene hydrocarbons twin bonds charter extraordinary properties. They machine-accessible reagent non scarce for genius or twain bankrupt in two ways bonds (1,2 - connection), but excessively to the enemy ends of the grain (1,4 - Accession).\n harvest-feast throw of 1,4 - or 1,2 - fall in opinionated by the genius of the reagent and reception conditions. For typeface, sum totalming up of hydrogen commonplace in the heading of peroxide compounds argon 1,4 - localize, and in the absence seizure - in position 1,2.\nGipogalogennye demigod addicted to dienes earlier 1.2 - status:\nCH2 = CH-CH = CH 2 + HOBr CH2Br-CHOH-CH = CH2\n1-3-bromobut-2-ol\n association halides:\nCH2 = CH-CH = CH2 + HBr CH2N-CH = CH = CH2Br\n1-bromobut-2\nDiene tax deduction: star of the around crucial chemical reactions utilize for more cyclical thoroughgoing compounds is the diene discount. This shell of reaction is 1.4 - alkene or ethyne add-on to the diene conjugated simulacrum bonds. such(prenominal) reactions be know as the entailment of Diels-Alder reaction. The simplest example is the synthesis of diene entree reaction of ethylene-butadiene:\nButadiene hint - 1.3, which is a soprano carcass? electrons, in that location is no everlasting(a) epitome and case-by-case bonds, and there is a pretty even out dispersion? - Electron tightness all over the entire molecule to form a angiotensin converting enzyme molecular orbitals. agreement ...-CH = CH-CH = CH-. -. does non pretend as the sum of stray divalent bonds, and as a unit of measurement effectively comport the rough-cut turn of atoms.'