“…13 C NMR (100.6 MHz, toluene-d 8 , syn/anti-rotamer): δ = 26.6 (q, iPr), 26.7 (q, iPr), 31.8 (s, CH 2 CMe 2 ), 31.9 (q, CH 2 CMe 2 ), 32.1 (s, C-t-Bu), 32.4 (q, C-t-Bu), 32.5 (q, C-t-Bu), 32.9 (q, N-t-Bu), 34.9 (q, N-t-Bu), 35.0 (q, CH 2 CMe 2 ), 48.6 (d, N−CH), 48.9 (d, N−CH), 54.5 (t, CH 2 ), 55.9 (t, CH 2 ), 57.6 (s, N-t-Bu), 59.0 (s, N-t-Bu), 62.4 (s, CH 2 CMe 2 ), 63.7 (s, CH 2 CMe 2 ). 15 N,N-Diisopropyladamantan-1-amine (39). Method I.…”