Polycyclic N-Heterocyclic Compounds. Part 63: Improved Synthesis of 5-Amino-1,2-dihydrofuro[2,3-c]isoquinolines via Truce-Smiles Rearrangement and Subsequent Formation to Furo[2,3-c]isoquinoline
作者:Kensuke Okuda、Masahiko Yoshida、Takashi Hirota、Kenji Sasaki
DOI:10.1248/cpb.58.363
日期:——
An improved synthesis of 5-amino-1,2-dihydrofuro[2,3-c]isoquinoline has been achieved using a slight modification of reaction conditions for the Truce-Smiles rearrangement. Acid treatment of the obtained 5-amino-1,2-dihydrofuro[2,3-c]isoquinolines gave unexpected ring-opened spiro ring compounds. The previously unreported parent compound, furo[2,3-c]isoquinoline, was also synthesized.
使用对Truce-Smiles重排的反应条件稍加修改,即可实现5-氨基-1,2-二氢呋喃[2,3-c]异喹啉的改进合成。对所得的5-氨基-1,2-二氢呋喃[2,3-c]异喹啉进行酸处理,得到意想不到的开环螺环化合物。还合成了以前未报道的母体化合物呋喃[2,3-c]异喹啉。