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Gas phase thermolysis of aryl t-butyl amines

✍ Scribed by Gonzalo Martin; Julian Ascanio; Jesus Rodriguez

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
463 KB
Volume
24
Category
Article
ISSN
0538-8066

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✦ Synopsis

N-t-butylaniline, N-t-butyl-p-anisidine, and N-t-butyl-p-nitroaniline have been pyrolyzed in a stirred-flow reactor at 51O-62O0C, 8-15 torr total pressure, and 0.5-1.5 s contact time, using toluene as carrier gas. An order one kinetics was observed for the consumption of the amines. The reactions yielded 95 5 2% isobutene plus the corresponding anilines as reaction products. The rate coefficients followed the Arrhenius equations N-t-butylaniline exp(-234 2 5 kJ/mol R T )

The results are consistent with an unimolecular elimination of isobutene involving polar four-center cyclic transition states.

📜 SIMILAR VOLUMES

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## Abstract The pyrolyses of __p__‐nitrophenyl __t__‐butyl ether, __p__‐methoxyphenyl __t__‐butyl ether, __p__‐aminophenyl __t__‐butyl ether, __p__‐nitrophenyl __t__‐butyl sulfide, and propargyl __t__‐butyl sulfide have been studied in a stirred‐flow reactor over the temperature range 430–530°C and

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The arnide derivatives of t-butylsulfenic acid mentioned in the title have been thermolyzed in a stirred-flow reactor at temperatures of 273-390°C and pressures of 7-I 5 torr, using toluene as carrier gas, at residence times of 0 4-2 s. lsobutene formed in 95-99% yields, through order one reactions,

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## Abstract The pyrolysis of __n__‐butyl 2‐propenyl sulfide has been investigated in a static system in the initial pressure range of 50–350 torr. The reaction was found to be homogeneous and first order. The rate coefficients are given by the Arrhenius equation between 262 and 293°C. The rate of

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Dially(4-fluorophenyl)phosphine and allyl(t-butylamino)phenylphosphine were pyrolyzed in a stirredflow reactor at 340-420ЊC/9-19 Torr, using toluene as carrier gas. The primary reaction products were propene, 1-(4-fluorophenyl)-1-phosphabutadiene, and 1phenyl-2-t-butyliminophosphine. The phosphorusc