Pentyl pyrolysis

The flash vacuum pyrolysis of alkynes, arynes, and aryl radicals has been reviewed. A discussion of secondary reactions and rearrangements is included. The pyrolysis of cyclopentadienes has also been examined. The rates for the initial C—H bond fission and the decomposition of C-C5H5 have been calculated. A single-pulse shock study on the thermal decomposition of 1-pentyl radicals found alkene products that are formed by radical isomerization through 1,4- and 1,3-hydrogen migration to form 2- and 3-pentyl radicals. The pyrrolysis of f-butylbenzene in supercritical water was the subject of a report. ... 

VHexyl chloride pyrolysis has not yet been reported -pentyl chloride pyrolysis was therefore used for approximate comparison. 

Analogously the alkaline hydrolysis with 2 M sodium hydroxide of enethoxy-carbonyl)methyl]-2-methylbicyclo[3.1.0]hexan-6-ol endo-2H) afforded the corresponding dicarboxylic acid. Pyrolysis of the endo-di cid gave a 50 34 mixture of cis- and tran.s-l-(3-methyl-cyclopentyl)ethanone along with lesser amounts of cis- and trans-l-(2-methylcyclo-pentyl)ethanone. The acidic hydrolysis of endo-2% (35% hydrochloric acid, at reflux temperature) gave predominantly trans-1-(2-methylcyclopentyl)ethanone. 

Maccoll and Swinbourne (1960, 1964) observed elimination of hydrogen chloride in the pyrolysis of neopentyl chloride, even though this molecule does not possess a j8-hydrogen atom. In the reaction scheme (1)—(3), reaction (1) accounted for 75% of the total reaction. The products from (1) are those that would be expected from t-pentyl... 

Two additional cannabidiol pyrolysis products have been identified [one is (242) and the other corresponds to cannabidiol with the phenolic and pentyl... 

C5H11O. D6W et al. (1986) studied the decomposition of 2-pentoxyl radicals obtained from the pyrolysis of 2-pentyl peroxide. 

The isomerization of 2-pentoxyl radicals was studied by D6b6 et al. (1986), who prepared the radical, either by pyrolysis or photolysis of 2-pentyl peroxide or by photolysis of 2-pentyl nitrite. The isomerization reaction was studied in competition with the decomposition reaction, which was measured independently in the same study. The isomerized radical was trapped by addition of CH3 radicals to give 2-hexanol. From 279 to 385 K, one has log ifciia/I ,if = 0-1 0.2) -I-(4.0 0.4)/0 where reaction 11a is... 

Pyrolysis of Zinc and Lead Di-Methyl Pentyl Dithiophos-phates (weights per cent)... 

Pyrolysis of the 1-pentyl and 3-pentyl structures shows that in the former case although the 1-ene is the main product, a considerable amount of double bond migration to the 2 position occurs. With the 3-pentyl compound, over 90% of the product appears as pentene-2, only 7.7% pentene-1 being observed. 

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