4436-30-0Relevant academic research and scientific papers
Ru3(CO)12-catalyzed reactions of catechols with alkynes: An atom-economic process for the synthesis of 2,2-disubstituted 1,3-benzodioxoles from the double addition of the O-H bond across a triple bond
Li, Ming,Hua, Ruimao
supporting information; experimental part, p. 8658 - 8660 (2009/04/11)
(Chemical Equation Presented) Ru3(CO)12 has been found to be the efficient catalyst for the addition reactions of catechols with both terminal and internal alkynes to selectively afford 2,2-disubstituted 1,3-benzodioxoles in good to high yields. The formation of 2,2-substituted 1,3-benzodioxoles results from the tandem addition of two O-H bonds of catechols to alkyne's triple bond.
Montmorillonite clay catalysis. Part 14. A facile synthesis of 2-substituted and 2,2-disubstituted 1,3-benzodioxoles
Li, Tong-Shuang,Li, Li-Jun,Lu, Bo,Yang, Feng
, p. 3561 - 3564 (2007/10/03)
A series of 2-substituted and 2,2-disubstituted 1,3-benzodioxoles have been synthesised by reaction of catechol and pyrogallol with corresponding aldehydes and ketones catalysed by montmorillonite KSF or K-10. The reactions are completed within 2.7-24 h to give satisfactory yields. Ketones give better yields than aldehydes, although highly sterically hindered ketones and diaryl ketones fail to react at all.
Antioxidant benzodioxole compound
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, (2008/06/13)
Novel antioxidant compounds for use in foodstuffs containing oils or fats are described which comprise benzodioxole compounds having the structure STR1 wherein R1 is a hydrogen atom or an alkyl group or an aryl group, R2 is an alkyl group or an aryl group, or R1 and R2 together form a cyclo alkyl group, and R3 is a hydrogen atom or an hydroxyl group.
An Improved Method for the Synthesis of 2,2-disubstituted and 2-Monosubstituted 1,3-Benzodioxoles
Cole, Edward R.,Crank, George,Minh, H. T. Hai
, p. 675 - 680 (2007/10/02)
The reactions of catechol with ketones and aldehydes have been studied and convenient procedures have been developed for the preparation of the title compounds in high yields.These products undergo virtually quantitative nitration at position 5, thus providing a source of derivatives substituted in the benzene ring.
