Synthesis of (S,S)-Isodityrosine by Dötz Benzannulation
摘要:
A synthesis of (S,S)-isodityrosine 1, a naturally occurring, key structural subunit of numerous biologically active macromolecules, is described. A formal [3 + 2 + 1] cycloaddition (Dotz benzannulation) approach was utilized to simultaneously construct an aromatic ring and the diaryl ether linkage in one step. This key step was extended to the synthesis of (S,S)-isodityrosine in two separate convergent synthetic routes. This method demonstrates a novel and mild method for the synthesis of diaryl ethers.
Synthesis of (S,S)-Isodityrosine by Dötz Benzannulation
摘要:
A synthesis of (S,S)-isodityrosine 1, a naturally occurring, key structural subunit of numerous biologically active macromolecules, is described. A formal [3 + 2 + 1] cycloaddition (Dotz benzannulation) approach was utilized to simultaneously construct an aromatic ring and the diaryl ether linkage in one step. This key step was extended to the synthesis of (S,S)-isodityrosine in two separate convergent synthetic routes. This method demonstrates a novel and mild method for the synthesis of diaryl ethers.
Regioselective C−H Functionalization of Heteroarene
<i>N</i>
‐Oxides Enabled by a Traceless Nucleophile
作者:Gangadhar Rao Mathi、Byeongseok Kweon、Yonghoon Moon、Yujin Jeong、Sungwoo Hong
DOI:10.1002/anie.202010597
日期:2020.12.7
simultaneous C8‐functionalization of quinolines at room temperature. Experimental and computational studies support the traceless operation of a nucleophile, which enables the previously inaccessible transformation of N‐alkenoxyheteroarenium salts. Remarkably, the generality of this strategy has been further demonstrated by broad applications in the regioselectiveC−Hfunctionalization of other electron‐deficient