di-isopropyl azodicarboxylate; triphenylphosphine in tetrahydrofuran 1.) 0 deg C, 1 h, 3.) room temperature, 1 h;

di-isopropyl azodicarboxylate; triphenylphosphine in tetrahydrofuran 1.) 0 deg C, 1 h, 3.) room temperature, 1 h;

1: 42 percent / di-isopropyl azodicarboxylate, triphenylphosphine / tetrahydrofuran / 1.) 0 deg C, 1 h, 2.) room temperature, 1 h 2: 63 percent / LiAlH4 / diethyl ether / 0.5 h View Scheme

1: 42 percent / di-isopropyl azodicarboxylate, triphenylphosphine / tetrahydrofuran / 1.) 0 deg C, 1 h, 2.) room temperature, 1 h 2: 63 percent / LiAlH4 / diethyl ether / 0.5 h 3: 12 percent / benzene / 24 h / Heating View Scheme

N-chloro-succinimide; triphenylphosphine 2.) acetone, reflux, 2 h; Multistep reaction;

N-chloro-succinimide; triphenylphosphine 2.) acetone, reflux, 2 h; Multistep reaction;