作者:Kenji Maeda、Edward J. Farrington、Erwan Galardon、Benjamin D. John、John M. Brown
DOI:10.1002/1615-4169(200201)344:1<104::aid-adsc104>3.0.co;2-v
日期:2002.1
The Heck reaction of aryl iodides with 1,2-dihydronaphthalene has been examined. Two separate reaction pathways are observed under all the conditions tried. Arylation adjacent to the aromatic ring leads to a subsequent double bond shift such that the product is a 1-aryl-1,2-dihydronaphthalene. The alternative regiochemistry leads to production of the corresponding 3-aryl-1,2-dihydronaphthalene, and labelling studies with specifically deuterated alkenes demonstrate that this is most likely to be the result of a trans Pd-H elimination pathway. The ratio always varies between 75:25 in favour of the 3-aryl product (Jeffery conditions) to 70:30 in favour of the 1-aryl product.