On March 18, 2009, Nicolaou, K. C.; Krasovskiy, Arkady; Majumder, Utpal; Trepanier, Vincent E.; Chen, David Y.-K. published an article.Related Products of 141940-37-6 The title of the article was New Synthetic Technologies for the Construction of Heterocycles and Tryptamines. And the article contained the following:
New synthetic methods for the construction of novel heterocycles and tryptamines are described. Thus, N-Boc anilines are sequentially converted to (3-(2-aminophenyl)pyrrolidin-3-ol) derivatives, substituted 2-oxo-1,2-dihydrospirobenzo[d][1,3]oxazine-4,3′-pyrrolidines, and 2-(4,5-dihydro-1H-pyrrol-3-yl)aniline derivatives through a route involving t-BuLi induced ortho-metalation/LaCl3·2LiCl metal exchange, reaction with N-Boc pyrrolidin-3-one, and subsequent decarboxylative fragmentation. Labile intermediates 2-(4,5-dihydro-1H-pyrrol-3-yl)anilines are effectively converted to tryptamines under controlled protic acid conditions. In addition to providing expedient access to the 2-oxo-1,2-dihydrospirobenzo[d][1,3]oxazine-4,3′-pyrrolidines, the method is applicable to the synthesis of the corresponding 2-oxo-1,2-dihydrospirobenzo[d][1,3]oxazine-4,3′-piperidine series of spirocycles and their precursors 3-(2-aminophenyl)piperidin-3-ol derivatives by using N-Boc-protected piperidin-3-one. Applications of the developed synthetic technologies to the synthesis of regioisomeric spirocycles, tryptamines, Corey’s aspidophytine tryptamine, and efavirenz are also described. The experimental process involved the reaction of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate(cas: 141940-37-6).Related Products of 141940-37-6
The Article related to spiroheterocycle tryptamine preparation, Heterocyclic Compounds (More Than One Hetero Atom): Oxazines (Including Morpholine) and other aspects.Related Products of 141940-37-6
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics