33471

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Electrospray ionization mass spectrometric analysis of chemical reactions of dissolution of selenium in strongly basic amines.

Ryuichi Arakawa et al.

Journal of mass spectrometry : JMS, 40(1), 66-69 (2004-12-08)

When elemental selenium was added to a strongly basic amine, 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) or 1,5-diazabicyclo[4.3.0]non-5-ene (DBN), the selenium started to dissolve and the solution turned dark brown. We investigated the chemical reaction of this selenium dissolution process by electrospray ionization mass

P(CH(3)NCH(2)CH(2))(3)N as a dehydrobromination reagent: synthesis of vitamin A derivatives revisited.

Andrzej E Wróblewski et al.

The Journal of organic chemistry, 67(2), 420-425 (2002-01-19)

Although P(CH(3)NCH(2)CH(2))(3)N (1) was found to be less effective than 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) or 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in the removal of hydrogen bromide from vitamin A intermediates 13-cis-10-bromo-9,10-dihydroretinyl acetates (6) and 14-bromo-9,14-dihydroretinyl acetate (11) when the reaction was carried out in refluxing

Preparation of diazabicyclo[4.3.0]nonene-based peptidomimetics.

Craig A Hutton et al.

The Journal of organic chemistry, 72(18), 6865-6872 (2007-08-10)

Several functionalized diazabicyclo[4.3.0]nonenes and other heterocycles have been prepared as potential peptidomimetic scaffolds. A novel and efficient method has been developed for the preparation of N-substituted gamma-lactams 13. Preparation of amidine-containing 1,5-diazabicyclo[4.3.0]nonenes 43 and 44 has been achieved through Hg-mediated

Threading chalcogenide layers with polymer chains.

Xiong, Wei-Wei et al.

Angewandte Chemie (International Edition in English), 127(2), 556-560 (2015)

Nucleophilicities and carbon basicities of DBU and DBN.

Baidya, M and Mayr, Herbert

Chemical Communications (Cambridge, England), 1792-1794 (2008)

1, 5-Diazabicyclo [4.3. 0] non-5-ene.

Savoca, Ann C and Urgaonkar, Sameer

eEROS (Encyclopedia of Reagents for Organic Synthesis) (2001)

Characterization of enhanced-fluidity liquid hydrophilic interaction chromatography for the separation of nucleosides and nucleotides.

Gwenaëlle S Philibert et al.

Journal of chromatography. A, 1218(45), 8222-8230 (2011-10-07)

Hydrophilic interaction chromatography (HILIC) is a liquid chromatographic separation mechanism commonly used for polar biological molecules. The use of enhanced-fluidity liquid chromatography (EFLC) with mixtures of methanol/water/carbon dioxide is compared to acetonitrile/water mobile phases for the separation of nucleosides and

Superbase route to supertetrahedral chalcogenide clusters.

Wu, Tao et al.

Journal of the American Chemical Society, 134(8), 3619-3622 (2012)

Recent progress in oligonucleotide synthesis.

W Pfleiderer et al.

Nucleic acids symposium series, (7)(7), 61-71 (1980-01-01)

It was found that some improvements in oligoribo- and oligo-2'-deoxyribonucleotide synthesis via the phosphotriester approach could be achieved using the p-nitrophenylethyl group for phosphate protection due to its stability in the condensation step and its clean removal of DBU and

Friedel-Crafts acylation of pyrroles and indoles using 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) as a nucleophilic catalyst.

James E Taylor et al.

Organic letters, 12(24), 5740-5743 (2010-11-17)

1,5-Diazabicyclo[4.3.0]non-5-ene (DBN) has been shown to be an effective catalyst for the regioselective Friedel-Crafts C-acylation of pyrroles and indoles in high yields. A detailed mechanistic study implies that DBN is acting as a nucleophilic organocatalyst, with the X-ray crystal structure

H. Oediger et al.

Synthesis, 591-591 (1972)

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