作者:James D. Thorpe、Daniel O'Reilly、Tomislav Friščić、Masad J. Damha
DOI:10.1002/chem.202001193
日期:2020.7.22
We demonstrate the first mechanochemical synthesis of DNA fragments by ball milling, enabling the synthesis of oligomers of controllable sequence and length using multi‐step, one‐pot reactions, without bulk solvent or the need to isolate intermediates. Mechanochemistry allowed for coupling of phosphoramidite monomers to the 5′‐hydroxyl group of nucleosides, iodine/water oxidation of the resulting phosphite
A SOLID SUPPORTED REAGENT FOR INTERNUCLEOSIDE <i>H</i>-PHOSPHONATE LINKAGE FORMATION
作者:Nikhil Mohe、Petri Heinonen、Yogesh S. Sanghvi、Roger Strömberg
DOI:10.1081/ncn-200059257
日期:2005.4.1
A fast and convenient procedure for synthesis of dinucleoside H-phosphonates is obtained through use of the novel polystyrene supported 5-carboxy-5-methyl-2-oxo- 2-chloro-1,3,2-dioxaphosphorinane reagent. Virtually quantitative H-phosphonate condensations are obtained leading to excellent isolated yields and with only a simple filtration as the purification procedure. This provides for a convenient and high-yielding procedure that should be suited for solution-phase synthesis of oligonucleotides.