13720-53-1Relevant academic research and scientific papers
Synthetic approach towards cuparene-type sesquiterpenes via highly regioselective epoxide opening under acid catalysis
Nascimento, Camila B.,Avelar, Leandro A.,Arantes, Danilo C.,Ishikawa, Noêmia K.,Macedo, Fernando
, p. 1899 - 1904 (2018)
Abstract: Obtaining cuparene-type sesquiterpenes is a significant synthetic challenge mainly because of the construction of the sterically hindered quaternary centres. We report herein the successful construction of such quaternary moiety by a highly regi
Intra- and intermolecular photocyclization of vinylbenzo-1,4-quinones
Iwamoto, Hidetoshi,Takuwa, Akio,Hamada, Kensaku,Fujiwara, Ryuji
, p. 575 - 581 (2007/10/03)
The photochemical reactions of a variety of vinylbenzo-1,4-quinones have been investigated. Irradiation of a benzene solution of 2-methyl-5-(1-phenylvinyl)benzo-1,4-quinone affords quantitatively a benzofuranol via intramolecular cyclization, while the st
Compositions based on direct dyestuffs containing a 2,5-dihydroxyphenylcarboxylic acid or a salt thereof
-
, (2008/06/13)
A composition suitable for dyeing keratin fibres, especially human hair, is provided comprising a direct dyestuff and, as a levelling agent, a 2,5-dihydroxyphenylcarboxylic acid or a salt thereof.
