Synthesis of 3,4-dialkylsulfanyl- and 3,4,5-trialkylsulfanyl derivatives of bromobenzene and benzaldehyde
                                
                                    
                                        作者:Aleksandra Jankowiak、Żaneta Debska、Jarosław Romański、Piotr Kaszyński                                    
                                    
                                        DOI:10.1080/17415993.2011.644554
                                    
                                    
                                        日期:2012.2.1
                                    
                                    3,4-Dialkylsulfanyl- (1a[n], n = 8, 9, 11) and 3,4,5-trialkylsulfanylbromobenzenes (1b[n], n = 6, 8, 10, 12) were prepared from 3,4-difluoro- and 3,4,5-trifluorobromobenzene, respectively, in 50-60% yields. The bromobenzenes 1[n] were converted to benzaldehydes 2[n] by lithium-halogen exchange followed by reaction with DMF.[GRAPHICS].