176237-95-9

Upstream product

• 29214-57-1 3-acetylheptane-2,6-dione 
• 65223-10-1 6-hydroxy-2,6-dimethyl-2H-pyran-3(6H)-one 
• 176237-93-7 6-(1,1-Diethoxy-ethyl)-3-methyl-6-morpholin-4-yl-5,6-dihydro-4H-[1,2]oxazine 2-oxide 
• 193155-13-4 3-(triphenylphosphoranylidene)heptane-2,6-dione 
• 176237-94-8 6,6-diethoxyheptane-2,5-dione 

Relevant academic research and scientific papers

SYNTHESIS OF FURAN, THIOPHENE, AND PYRROLES FROM ACETOACETIC ESTERS

The present invention refers to using ester pgd2 alkylacetoacetoates furan, thiophene, method relates to synthesis of pyrrole, more particularly the acetohydroxy pgd2 ester compound alpha, beta unsaturated carbonyl compounds obtained is added to the 1,5-dicarbonyl compounds (II)/ cobalt manganese (III) method of silica glass by sol the reaction deacetylase with Neel step then alkali to thereby synthesize a compound 1,4-dicarboxylic, Paal-Knorr herein using synthesis on the furan, thiophene, pyrrole for synthesizing relates to method. According to the present invention, a necessary for synthesis of Paal-Knorr 1,4-dicarbonyl compounds efficiently mixed in the oxidation reaction from said 1,5-dicarbonyl compounds (deacetylase reaction) and a conjunction synthesis on the Paal-Knorr in the reaction vessel a are sequentially two reactors furan, thiophene, and of won-port synthesis method by using the mask pattern.. (by machine translation)

Tandem catalytic oxidative deacetylation of acetoacetic esters and heteroaromatic cyclizations

One pot syntheses of furan, thiophene, and pyrrole were accomplished by oxidative deacetylation using Mn(iii)/Co(ii) catalysts and the Paal-Knorr reaction from 1,5-dicarbonyl compounds, which are prepared from the conjugate addition of ethyl acetoacetate to α,β-unsaturated carbonyl compounds. The oxidative deacetylation and reductive cyclization of β-ketoesters derived from ethyl acetoacetate and o-nitrobenzyl bromides efficiently produced diversely substituted indoles. This journal is

DABCO-catalyzed reaction of 2,6-disubstituted 6-hydroxy-2H-pyran-3(6H)-ones to 1,2,5-triketones

The DABCO-catalyzed isomerization/redox rearrangement readily converts 2,6-dialkyl-6-hydroxy-2H-pyran-3(6H)-ones into 1,2,5-triketones. Georg Thieme Verlag Stuttgart - New York.

Reaction of vinylketones with stabilized phosphoniumylids

Acylphosphoniumylids 1 react with vinylketones 2 under formation of 1-acyl-4-oxoylids 3. In the reaction of carboalkoxyetriphenylphosphoranes 4 with 2 two reaction pathways occur. In polar solvents again a Michael-addition gives the phosphoranes 6, wherea

Mononitroalkylations of butane-2,3-dione

The morpholino enamine of monoprotected butane-2,3-dione reacts with cyclic and acyclic conjugated nitroalkenes in a Michael-type reaction to yield nitro-substituted α-diketones, after acidic hydrolysis of the mononitroalkylated enamine adducts. Cyclopentanone, hexahydro-1H-pentalen-2-one and octahydro-2H-inden-2-one derivatives are readily obtained by base-catalyzed intramolecular nitroaldol reaction of the acyclic hydrolysis products.