作者:Ran Hong、Jun Feng、Rob Hoen、Guo-qiang Lin
DOI:10.1016/s0040-4020(01)00816-x
日期:2001.10
The synthesis of bisbenzopyran-4-ol (1) was performed through the key steps of iodination, nickel(0)-modified Ullmann-type reaction, hydrogen-transfer hydrogenation and diastereoselective reduction. The X-ray diffraction experiment of compound 9 confirmed that the reported structure in the literature was not the real natural product. (C) 2001 Elsevier Science Ltd. All rights reserved.