Results 31 to 40 of about 142,060 (347)
Hydroxymethyl Rotamer Populations in Disaccharides.
ChemInform, 2003 Sixteen methyl glucopyranosyl glucopyranoside disaccharides (methyl beta-d-Glcp(p-Br-Bz)-(1-->x)-beta/alpha-d-Glcp) containing beta-glycosidic linkages (1-->2, 1-->3, 1-->4, and 1-->6) were synthesized and analyzed by means of CD and NMR spectroscopy in three different solvents.
Roën, Alfredo +2 more
openaire +5 more sources
Hydroxymethylation and Alkoxymethylation of Methacryloguanamine [PDF]
Bulletin of the Chemical Society of Japan, 1983 Abstract The reaction of 2-amino-4-(substituted amino)-6-isopropenyl-1,3,5-triazines (methacryloguanamine) with formaldehyde gave several new monomers having hydroxymethyl groups in satisfactory yields. These monomers were easily converted into the corresponding alkyl ethers with methanol.
Toshihiro Seo, Kenji Abe, Toshio Kakurai
openaire +2 more sources
Highly-functionalised difluorinated cyclohexane polyols via the Diels–Alder reaction : regiochemical control via the phenylsulfonyl group [PDF]
, 2005 A difluorinated dienophile underwent cycloaddition reactions with a range of furans to afford cycloadducts whichcould be processed regio- and stereoselectively via episulfonium ions, generated by the reaction between their alkenyl groups and ...
Crowley, Patrick J +5 more
core +1 more source
Synthesis of 5-Acetoxymethyl- and 5-Hydroxymethyl-2-vinyl-furan
Molecules, 2007 5-Acetoxymethyl- and 5-hydroxymethyl-2-vinylfuran were synthesized by two routes. The first route starts from 2-methylfuran and the second from furfuryl acetate. The latter route, involving successive Vilsmeier-Haack and Wittig reactions, is suitable for
Alexander Mehner +3 more
doaj +1 more source
Synthesis of enantiomeric polyhydroxyalkylpyrrolidines from 1,3-dipolar cycloadducts. Evaluation as inhibitors of a β-galactofuranosidase [PDF]
, 2016 Enantiomeric 2,3,4-tris(hydroxyalkyl)-5-phenylpyrrolidines have been synthesized from the major cycloadducts obtained by the 1,3-dipolar cycloaddition of sugar enones with azomethine ylides derived from natural amino acids.
Oliveira Udry, Guillermo Alejandro +3 more
core +2 more sources
Selective Hydroxymethylation of Emodin [PDF]
Bulletin of the Chemical Society of Japan, 1991 Abstract Electrochemical oxidation of 1,3,8-trihydroxy-6-methylanthraquinone, emodin, in dry alkaline methanol under a constant current of 0.05 A for 10 h under an applied potential difference of 15 V at room temperature resulted, for the first time, in an efficient and selective hydroxymethylation at C-2.
Tarasankar Pal, Anjali Pal
openaire +3 more sources
Chemical segregation of complex organic O-bearing species in Orion KL [PDF]
A&A 620, L6 (2018), 2018 We investigate the chemical segregation of complex O-bearing species (including the largest and most complex ones detected to date in space) towards Orion KL, the closest high-mass star-forming region. The molecular line images obtained using the ALMA science verification data reveal a clear segregation of chemically related species depending on their ...
arxiv +1 more source
4,4-Bis(hydroxymethyl)-2-phenyl-2-oxazoline
Molbank, 2020 The title compound, 4,4-bis(hydroxymethyl)-2-phenyl-2-oxazoline 2, a well-known substance, was resynthesized in high yields through a conventional method.
Sara Hajib +7 more
doaj +1 more source
Novel pyrrolizidine alkaloid [PDF]
, 1991 The present invention involves a purified bioactive compound of the formula: ##STR1## wherein at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are H or an acyl having less than about five carbon atoms.
Elbein, Alan D., Tropea, Joseph E.
core +1 more source
Acta Crystallographica Section E, 2009 In the molecule of the title compound, C7H8O2, the phenol O and hydroxymethyl C atoms lie in the ring plane [deviations of −0.015 (3) and and 0.013 (3) Å, respectively].
Wei-Sheng Liu +4 more
doaj +1 more source