“…In a previous experiment using the same procedure, a sample of cold 12 (59 mg, 0.14 mmol) was converted to 2 (20 mg, 22%): 'H NMR (300 MFIz, CDC13) 5.05 (br s, 4 H, vinyls), 4.87 (d, J = 8 Hz, vinyl adjacent to C3'), 4.0-2.6 (br, ammonium counterions, carbinyls), 1.96 (m, 16 H, vinyl methylenes), 1.64 (m, 9 H, vinyl methyls), 1.55 (s, 12 H, vinyl methyls), 1.4-0.8 ppm (unresolved resonances for the cyclopropyl methyl and Cl' and C3' cyclopropyls); 31P NMR (121 MHz, CDC13) -9.4 (br s, 1 P, P2), -11.3 (br s, 1 P, PI); negative ion FABMS, m/z (rel intensity) 585 (M -NjH,0, 25), 189 (11), 181 (12), 177 (14), 159 (30), 97 (16).…”