- Synthesis of renewable alkylated naphthalenes with benzaldehyde and angelica lactone
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Herein, we report a new route for the synthesis of renewable alkylated naphthalenes (ANs) with benzaldehyde and angelica lactone, two platform compounds that can be derived from lignocellulose.
- Cong, Yu,Li, Guangyi,Li, Ning,Wang, Aiqin,Wang, Ran,Wang, Xiaodong,Xu, Jilei,Zhang, Tao
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supporting information
p. 5474 - 5480
(2021/08/16)
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- Studies in catalytic dehydrogenation: Part X1 - Syntheses of alkylsubstituted spirol[4,6]undecanes and dehydrogenation of 1 -ethyl-8,9- benzospiro[4,6]undecane
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Acylation of benzene with 2-alkylsubstituted cyclopentan-l,l-diacetic anhydrides gives the keto acids (2, R = Me, Et, Prn, Pri) which are converted into the desired alkylsubstituted spiro[4,6]undecanes 5 by Paar hydrogenation followed by cyclisation and Wolff-Kishner reduction. Catalytic dehydrogenation of l-ethyl-8,9-benzospiro[4,6]undecane 5b with Pd-C gives a complex mixture of products from which a few major products like naphthalene, 2-methylnaphthalene, l-ethylnaphthalene, 1,2-dimethylnaphthalene, 1,4,6-trimethylnaphthalene, anthracene and l-methylanthracene are identified by comparative GC-mass spectra. A plausible explanation of the formation of these products is suggested.
- Lahiri, Sikha,Pal, Panchanan,Chatterjee, Gautam,Maity, Basudev,Sen
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p. 768 - 773
(2007/10/03)
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