1: 4-bromobenzocyclobutene With magnesium; ethylene dibromide in tetrahydrofuran 0.75 h; Heating; 2: N,N-dimethyl-formamide in tetrahydrofuran 0.25 h; Further stages.;
参考文献
VANDERBILT UNIVERSITY
Patent: WO2008/24435 A2, 2008 ;
Location in patent: Page/Page column 94-95 ;