Hydrogen chloride point group

Q In a reaction very similar to the formation of a sulfonate ester (see Section 8.9), the oxygen of the alcohol displaces the chlorine. (The mechanism for this part of the reaction may involve more than one step, but the details are not important at this point) The by-product is hydrogen chloride. This converts the oxygen to the chlorofulfite leaving group O... 

The work of Petrov (288) and of Moldavskil (236) on the isomerization of some paraffins in the presence of aluminum chloride points to the similarity in temperature required for cracking and for isomerization of these paraffins in the presence of the catalyst used. Moldavskil used aluminum chloride-hydrogen chloride for isomerization of butanes and pentanes and observed a redistribution of methyl groups (241). 

PVC is a vinyl polymer where X is a chlorine atom in the general formula of Scheme 12.3, but its thermal decomposition follows a quite differeut pathway from that of PS, starting with division of the side groups from the main chain. When a chlorine atom is cut off from a defect point (tertiary carbon atom or allyl bond), it abstracts the hydrogen atom from the next carbon atom, then hydrogen chloride is eliminated, together with the... 

G) Identification of Monohydroxy Compounds. The evolution of hydrogen chloride, when acetyl chloride or phosphorus trichloride is added to a compound, indicates the possible presence of a hydroxy group. For identification purposes a derivative should be prepared. 3, 5-Dinitrobenzoic acid forms crystalline derivatives with hydroxy compounds. The melting points of the esters are utilized for identification. 

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