Results 311 to 320 of about 71,210 (340)
Some of the next articles are maybe not open access.
(Dimethylamino)methyl Methyl Ether
2001(1; R = Me) [62393-45-7] C4H11NO (MW 89.14) InChI = 1S/C4H11NO/c1-5(2)4-6-3/h4H2,1-3H3 InChIKey = YFTNTMQKPLVKFQ-UHFFFAOYSA-N (2; R = Bu) [56275-84-4] C7H17NO (MW 131.22) InChI = 1S/C7H17NO/c1-4-5-6-9-7-8(2)3/h4-7H2,1-3H3 InChIKey = HPUIQFXZXVKZBN-UHFFFAOYSA-N (precursor for N,N-dimethyl(methylene)ammonium salts;2, 3 useful ...
openaire +2 more sources
The Methyl Ethers of D-Glucose
1950Publisher Summary This chapter discusses that methylation will connote the replacement of the primary or secondary alcohol groups of a sugar by methoxyl groups. The derived methyl glycoside does not behave as an ether and the original sugar may be regenerated from it by hydrolysis with aqueous acid.
Stanley Peat, E. J. Bourne
openaire +3 more sources
Stereocontrolled total synthesis of (±)-totaryl methyl ether and (±)-semperviryl methyl ether
Tetrahedron, 1992Abstract Stereocontrolled synthesis in racemic form of the title diterpene ethers is described. Friedel-Crafts acylation of the naphthalene derivative 15 afforded the methyl ketone 16 in high yield. The compounds 5 and 16 were converted into the hydrophenanthrenones 6 and 7 respectively. Reductive methylation of 6 and 7 in anhydrous ammonia furnished
Swati Das +2 more
openaire +2 more sources
Journal of Chemical & Engineering Data, 2003
PVT properties are presented for both the gas-phase and liquid-phase, vapor pressures and saturated-liquid densities for hydrofluoroether (HFE) refrigerants, trifluoromethyl methyl ether (CF3OCH3) and pentafluoroethyl methyl ether (C2F5OCH3), that were obtained with a Burnett apparatus and a vibrating-tube densimeter.
Yohei Kayukawa +4 more
openaire +2 more sources
PVT properties are presented for both the gas-phase and liquid-phase, vapor pressures and saturated-liquid densities for hydrofluoroether (HFE) refrigerants, trifluoromethyl methyl ether (CF3OCH3) and pentafluoroethyl methyl ether (C2F5OCH3), that were obtained with a Burnett apparatus and a vibrating-tube densimeter.
Yohei Kayukawa +4 more
openaire +2 more sources
Synthetic Communications, 2011
AbstractA new and efficient method for the demethylation of aryl as well as hetaryl methyl ethers using a combination of LiCl and TosOH is described.
Ajay Soni +3 more
openaire +3 more sources
AbstractA new and efficient method for the demethylation of aryl as well as hetaryl methyl ethers using a combination of LiCl and TosOH is described.
Ajay Soni +3 more
openaire +3 more sources
2001
[13057-17-5] C2H5BrO (MW 124.96) InChI = 1S/C2H5BrO/c1-4-2-3/h2H2,1H3 InChIKey = JAMFGQBENKSWOF-UHFFFAOYSA-N (alkylating agent; formaldehyde equivalent;1-8 alcohol protecting group9-14) Alternate Name: BMME. Physical Data: bp 87 °C; d 1.531 g cm−3.
openaire +2 more sources
[13057-17-5] C2H5BrO (MW 124.96) InChI = 1S/C2H5BrO/c1-4-2-3/h2H2,1H3 InChIKey = JAMFGQBENKSWOF-UHFFFAOYSA-N (alkylating agent; formaldehyde equivalent;1-8 alcohol protecting group9-14) Alternate Name: BMME. Physical Data: bp 87 °C; d 1.531 g cm−3.
openaire +2 more sources
Synthesis of emodin methyl ethers
Australian Journal of Chemistry, 1977Procedures are summarized for the conversion of emodin (1) into all possible mono- and di-methyl ethers. The 1-methyl ether (2) is characterized for the first time. The 1- and 8-methyl ethers are differentiated by small differences in the chemical shifts of appropriate aromatic protons of their respective 6-benzoates.
D. W. Cameron, M. J. Crossley
openaire +3 more sources
2005
[3492-44-2] C2H4Br2O (MW 203.86) InChI = 1S/C2H4Br2O/c1-5-2(3)4/h2H,1H3 InChIKey = HDMDJEKUPKOGNK-UHFFFAOYSA-N (brominating reagent, reagent to effect conversions at the anomeric center of carbohydrates) Physical Data: bp 32–33 °C/13 mm Hg.
openaire +2 more sources
[3492-44-2] C2H4Br2O (MW 203.86) InChI = 1S/C2H4Br2O/c1-5-2(3)4/h2H,1H3 InChIKey = HDMDJEKUPKOGNK-UHFFFAOYSA-N (brominating reagent, reagent to effect conversions at the anomeric center of carbohydrates) Physical Data: bp 32–33 °C/13 mm Hg.
openaire +2 more sources
Bioactivity of brassinolide methyl ethers
Phytochemistry, 1998Abstract Four new derivatives of brassinolide (BR) were prepared by single or multiple methylation of the hydroxyl groups at C-2, C-3, C-22 and or C-23 to afford (22 R ,23 R ,24 S )-2 α ,3 α ,23-trihydroxy-22-methoxy-7-oxa-7a-homo-5 α -ergostan-6-one (22-MeBR), (22 R ,23 R ,24 S )-2 α ,3 α ,22-trihydroxy-23-methoxy-7-oxa-7a-homo-5 α -ergostan-6-one ...
Richard P. Pharis +3 more
openaire +2 more sources
The Methyl Ethers of Hexuronic Acids
1954Publisher Summary This chapter provides an overview of the methyl ethers of hexuronic acids. Hexuronic acid residues occur in a large number of different polysaccharides. The chapter focuses on the methyl ethers of the naturally occurring D-glucuronic, D-galacturonic, and D-mannuronic acids, and their derivatives.
openaire +3 more sources