DISAL glycosyl donors for efficient glycosylations under acidic conditions: Application to solid-phase oligosaccharide synthesis

2001 ◽  
pp. 2175-2182 ◽  
Author(s):  
Lars Petersen ◽  
Knud J. Jensen
Keyword(s):  
Solid Phase ◽  
Oligosaccharide Synthesis ◽  
Acidic Conditions ◽  
Glycosyl Donors

Glycosyldisulfides: a new class of solution and solid phase glycosyl donors

2001 ◽  
pp. 189-190 ◽  
Author(s):  
Benjamin G. Davis ◽  
Sarah J. Ward ◽  
Phillip M. Rendle
Keyword(s):  
Solid Phase ◽  
New Class ◽  
Glycosyl Donors

Use of controlled pore glass in solid phase oligosaccharide synthesis. Application to the semiautomated synthesis of a glyconucleotide conjugate

1998 ◽  
Vol 39 (14) ◽  
pp. 1953-1956 ◽  
Author(s):  
Matteo Adinolfi ◽  
Gaspare Barone ◽  
Lorenzo De Napoli ◽  
Alfonso Iadonisi ◽  
Gennaro Piccialli
Keyword(s):  
Solid Phase ◽  
Oligosaccharide Synthesis ◽  
Controlled Pore Glass ◽  
Pore Glass

scholarly journals Sequential extraction and thermal desorption of mercury from contaminated soil and tailings from Mongolia

2012 ◽  
Vol 10 (5) ◽  
pp. 1565-1573 ◽  
Author(s):  
Pavel Coufalík ◽  
Pavel Krásenský ◽  
Marek Dosbaba ◽  
Josef Komárek
Keyword(s):  
Sequential Extraction ◽  
Thermal Desorption ◽  
Solid Phase ◽  
Extraction Procedure ◽  
Speciation Analysis ◽  
Water Soluble ◽  
Mercury Species ◽  
Different Temperatures ◽  
Acidic Conditions ◽  
Desorption Method

AbstractMercury forms in contaminated environmental samples were studied by means of sequential extraction and thermal desorption from the solid phase. The sequential extraction procedure involved the following fractions: water soluble mercury, mercury extracted in acidic conditions, mercury bound to humic substances, elemental Hg and mercury bound to complexes, HgS, and residual mercury. In addition to sequential extraction, the distribution of mercury species as a function of soil particles size was studied. The thermal desorption method is based on the thermal decomposition or desorption of Hg compounds at different temperatures. The following four species were observed: Hg0, HgCl2, HgS and Hg(II) bound to humic acids. The Hg release curves from artificial soils and real samples were obtained and their applicability to the speciation analysis was considered.

scholarly journals Recent progress in oligonucleotide synthesis.

1996 ◽  
Vol 43 (1) ◽  
pp. 37-44 ◽  
Author(s):  
W Pfleiderer ◽  
S Matysiak ◽  
F Bergmann ◽  
R Schnell
Keyword(s):  
Acid Catalysis ◽  
Solid Phase ◽  
Chain Elongation ◽  
Synthetic Approach ◽  
Blocking Group ◽  
General Application ◽  
Acidic Conditions ◽  
Elongation Process ◽  
Acid Labile ◽  
Solid Phase Material

New blocking group combinations for the machine-aided oligoribonucleotide synthesis on solid phase material have been developed and tested regarding their general application. An acetal function for 2'-OH protection offers a series of advantages in the synthetic approach but special conditions have to be fulfilled in order to guarantee a selective cleavage of the temporary 5'-OH blocking group such as the dansylethoxycarbonyl or even the acid-labile dimethoxytrityl group in the chain elongation process. The final removal of the 2'-O-acetal function in the partially deblocked oligomer proceeds unexpectedly well under weak acidic conditions due to a supposed intramolecular acid catalysis.

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