1: DBU / 2-methyl-propan-2-ol / Heating 2: H2 / Raney Ni 3: 80 percent / Mg(OTf)2 4: 73 percent / CHCl3 5: 1.) Et3O(1+)*BF4(1-), Na2CO3; 2.) HOAc / 1.) THF, CH2Cl2 6: 80 percent / ethanol 7: methanolic sodium methoxide / benzene 8: Et3N / CHCl3 / 100 °C / sealed tube View Scheme