Similar words: tetrahydrofuran, benzol, benzoin, benzoyl, benzoic, benzoate, benzocaine, benzophenone. Meaning: n. a colorless oily compound extracted from coal tar and used in manufacturing synthetic resins.
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1. Second, the synthetic benzofuran neolignans as substrate, of which 4'-OH were replaced by a series of other functional group.
2. Several new bis (1,2-dicarbonyl) compounds containing benzofuran or benzothiophene ring have been synthesized and identified by elemental analysis and Infra red spectroscopy.
3. Processes for production of benzofuran are introduced and analyzed in this article. A scheme, in which vacuum distillation is used, is put forward to improve the old processes.
4. The invention discloses a preparation method of a benzofuran ketones compound containing indoles substituent groups.
5. Furan, benzofuran, and vinyl acetate were classified as possibly carcinogenic to humans.
6. is obtained by esterification of 6,7 - dihydroxyl - 3,3 - diphenyl - 3 H - benzofuran - 2 - ketone employing 2 - diazo - 1 - naphthoquinone - 5 - ...
7. First, aiming at constructing dihydrobenzofuran skeleton, the synthetic routes were devised; through the following reaction process six benzofuran neolignans compounds have been synthesized.
8. esterification of 6,7 - dihydroxyl - 3,3 - diphenyl - 3 H - benzofuran - 2 - ketone employing 2 - diazo - 1 - naphthoquinone - 5 - sulfonyl chloride.
9. Experiments are undergone to extract colorants from naturally colored cotton fiber. Results show that natural colorants are water or alcohol soluble substances with 2-benzyl benzofuran structure.
More similar words: tetrahydrofuran, benzol, benzoin, benzoyl, benzoic, benzoate, benzocaine, benzophenone, benzoquinone, benzoxazine, benzoic acid, benzopyrene, benzoyl peroxide, benzodiazepine, sodium benzoate, furan, enzootic, furfural, forbidden zone, Benz, benzyl, benzene, benzine, dibenzyl, benzidine, benzamide, azobenzene, benzathine, benzene ring, bromobenzene.