Flash vacuum pyrolysis of aryl propargyl ethers

被引：5

作者：

Mohamed, Asaad S. ^{[1
]}

Habib, Osama M. ^{[2
]}

Al-Awadi, Nouria A. ^{[1
]}

机构：

[1] Kuwait Univ, Fac Sci, Chem Dept, POB 5969, Safat 13060, Kuwait

[2] Kuwait Univ, Fac Med, Biochem Dept, Safat, Kuwait

来源：

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 2022年 / 167卷

关键词：

Flash vacuum pyrolysis; Propargyl ethers; Claisen rearrangement; OXIDATIVE CYCLIZATION; ARYLBORONIC ACIDS; IONIC LIQUIDS; COMPLEXES; REGIOSELECTIVITY; 2H-CHROMENES; TEMPERATURE; REAGENT; PHENYL;

D O I：

10.1016/j.jaap.2022.105638

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Flash vacuum pyrolysis (FVP) of aryl propargyl ether 9 produces 2-methylbenzofuran 21, 2H-chromene indanone 22 and benzocyclobutene 23. o-chloro-and bromo-aryl propargyl ethers 10 & 11 resulted mainly in methyl-benzofurans 25, 26 & 29 and 2H-chromene derivative 27. On the other hand, FVP of arylpropargyl ethers with an active substituent at the ortho position of the aryl group 12-15 & 20 has resulted in interesting, unexpected products. All products were analyzed, fully characterized, and identified. Mechanisms are proposed for most of these FVP reactions.

引用

页数：10

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