Efficient, scalable and economical preparation of tris(deuterium)- and13C-labelledN-methyl-N-nitroso-p-toluenesulfonamide (Diazald®) and their conversion to labelled diazomethane
Efficient, scalable and economical preparation of tris(deuterium)- and13C-labelledN-methyl-N-nitroso-p-toluenesulfonamide (Diazald®) and their conversion to labelled diazomethane
One-Pot Two-Step Enzymatic Coupling of Pyrimidine Bases to 2-Deoxy-<scp>d</scp>-ribose-5-phosphate. A New Strategy in the Synthesis of Stable Isotope Labeled Deoxynucleosides
作者:N. Ouwerkerk、M. Steenweg、M. de Ruijter、J. Brouwer、J. H. van Boom、J. Lugtenburg、J. Raap
DOI:10.1021/jo0107249
日期:2002.3.1
5'-(13)C(2)]- and [1',2',5'-(13)C(3)]thymidine as well as [1',2',5'-(13)C(3)]2'-deoxyuridine and [3',4'-(13)C(2)]2'-deoxycytidine. In addition the nucleoside bases thymine and uracil are tetralabeled at the (1,3-(15)N(2),2,4-(13)C(2))-atomic positions. All compounds are prepared without any scrambling or dilution of the labeled material and are thus obtained with a very high isotope enrichment (96-99%). In combination
Zeller,K.-P., Zeitschrift fur Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, 1976, vol. 31, p. 586 - 588
作者:Zeller,K.-P.
DOI:——
日期:——
Efficient, scalable and economical preparation of tris(deuterium)- and<sup>13</sup>C-labelled<i>N</i>-methyl-<i>N</i>-nitroso-<i>p</i>-toluenesulfonamide (Diazald®) and their conversion to labelled diazomethane
作者:Samuel W. J. Shields、Jeffrey M. Manthorpe
DOI:10.1002/jlcr.3231
日期:2014.10
A method for the preparation of multi-gramme quantities of N-methyl-d3-N-nitroso-p-toluenesulfonamide (Diazald-d3) and N-methyl-13C-N-nitroso-p-toluenesulfonamide (Diazald-13C) and their conversion to diazomethane-d2 and diazomethane-13C, respectively, is presented. This approach uses robust and reliable chemistry, and critically, employs readily commercially available and inexpensive methanol as the label source. Several reactions of labelled diazomethane are also reported, including alkene cyclopropanation, phenol methylation and α-diazoketone formation, as well as deuterium scrambling in the preparation of diazomethane-d2 and subsequent methyl esterification of benzoic acid.