Lanthanide trifluoromethanesulfonate catalysed selective acylation of 10-deacetylbaccatin III
β Scribed by Eric W.P Damen; Lesly Braamer; Hans W Scheeren
- Book ID
- 104259665
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- French
- Weight
- 100 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
The selective C-10 acylation of 10-deacetylbaccatin III to baccatin III and derivatives is very efficiently catalysed by lanthanide trifluoromethanesulfonates. Baccatin III, now readily available through this procedure, is an important precursor for an economically viable semisynthesis of paclitaxel and its derivatives.
π SIMILAR VOLUMES
New methylenimim'mrt salts were investigated as acylating agent of 10-deneetylbaecatin Ill. Thus, syntla~is of baeeatin llI was performed in one step with 79% isolated yield and 98% selectivity using the iminium salt prepared from mesyl chloride and N-ethyl~de.