Saccharin sulfonic acid catalyzed N-Boc protection of amines and formation of tert-butyl ethers from alcohols
作者:F. Shirini、M. A. Zolfigol、M. Abedini
DOI:10.1007/bf03246047
日期:2010.9
(SaSA), as a stable reagent is easily prepared by the reaction of saccharin with neat chlorosulfonic acid at room temperature. This compound is able to catalyze conversion of amines to their corresponding N-Boc protected amines with (Boc)2O. Alcohols were also converted to their corresponding tert-butyl ethers. All reactions took place under mild conditions giving the desired products in good to high
Poly(4-vinylpyridine) catalyzed chemoselective O-TMS protection of alcohols and phenols and N-Boc protection of amines
作者:Farhad Shirini、Nader Ghaffari Khaligh
DOI:10.1007/s13738-011-0060-5
日期:2012.8
Poly(4-vinylpyridine) (PVP) acts as an efficient and reusable catalyst for the selective and efficient trimethylsilylation of alcohols and phenols with hexamethyldisilazane (HMDS) and N-tert-butoxycarbonylation of amines with (Boc)2O. All reactions were performed under mild conditions in good to high yields.
Preparation, characterization and application of succinimidinium hydrogensulfate ([H-Suc]HSO<sub>4</sub>) as an efficient ionic liquid catalyst for the N-Boc protection of amines
Succinimidinium hydrogensulfate ([H-Suc]HSO4), which is prepared from the reaction of succinimide and sulfuric acid, showed excellent catalytic activity for theN-Boc protection of various amines under solvent free conditions.
BICYCLIC HETEROCYCLIC DERIVATIVES AS MNK1 AND MNK2 MODULATORS AND USES THEREOF
申请人:Agency for Science, Technology and Research
公开号:US20140371199A1
公开(公告)日:2014-12-18
The present invention relates to certain compounds (e.g., imidazopyrazine, imidazopyridine, imidazopyridazine and imidazpyrimidine compounds) that act as inhibitors of the MAP kinase interacting kinases MNK2a, MNK2b, MNK1a, and MNK1b. The present invention further relates to pharmaceutical compositions comprising these compounds, and to the use of the compounds for the preparation of a medicament for the prophylaxis and treatment of diseases (e.g., proliferative diseases (e.g., cancer), inflammatory diseases, Alzheimer's disease), as well as methods of treating these diseases.
Sustainable Route Toward
<i>N</i>
‐Boc Amines: AuCl
<sub>3</sub>
/CuI‐Catalyzed
<i>N</i>
‐
<i>tert</i>
‐butyloxycarbonylation of Amines at Room Temperature
作者:Yanwei Cao、Yang Huang、Lin He
DOI:10.1002/cssc.202102400
日期:2022.2.18
Boc-kle up: An atom-economic synthesis of N-tert-butoxycarbonyl (N-Boc) amines from amines, t-butanol, and CO is reported at room temperature with commercially available AuCl3/CuI as catalysts. Gram-scale preparation of medicinally important N-Boc amine intermediates is achieved, which demonstrates a potential application prospect in industrial syntheses.
Boc-kle up :报道了在室温下使用市售的 AuCl 3 /CuI 作为催化剂,由胺、叔丁醇和 CO以原子经济方式合成N-叔丁氧羰基 ( N - Boc) 胺。实现了具有重要药用价值的N -Boc 胺中间体的克级制备,在工业合成中具有潜在的应用前景。