𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Use of new phosphonylating and coupling agents in the synthesis of oligodeoxyribonucleotides via the H-phosphonate approach

✍ Scribed by Osamu Sakatsume; Hiroshi Yamane; Hiroshi Takaku; Naoki Yamamoto


Publisher
Elsevier Science
Year
1989
Tongue
French
Weight
225 KB
Volume
30
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


Tris(l,l,l,

3,

3,

) phosphite was used as a phosphonylatin E reaEent for the preparation of nucleoside 3'-H-phosphonate units. The use of a new couplin E reaEent, 1,3-dimethyl-2-chloro-imidazolinium chloride (DMCI) for the internucleotidic H-phosphonate bond formation via the H-phosphonate approach is also discussed in detail.


πŸ“œ SIMILAR VOLUMES


The Prooligonucleotide Approach: Synthes
✍ Jean-Charles Bologna; FranΓ§ois Morvan; Jean-Louis Imbach πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 232 KB πŸ‘ 1 views

The synthesis of mixed SATE-phosphotriester and phospho-linkages to yield thiono-or oxo-triester SATE and thiono-or oxo-diester linkages. This approach allows the synthesis of diester prooligonucleotides using both phosphoramidite and H-phosphonate chemistries is described. The key step is the any d

Trimethylsilyldiazomethane in the prepar
✍ JoΕΎko Cesar; Marija Sollner Dolenc πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 French βš– 75 KB

Reaction of trimethylsilyldiazomethane with a mixed anhydride derived from a carboxylic acid by the action of ethyl chloroformate, yields the corresponding diazoketone in high yield. Subsequent Wolff rearrangement of the diazoketone leads to the homologated ester. Reaction of trimethylsilyldiazometh