1: benzenethiol sodium salt With sodium hydride in tetrahydrofuran; mineral oil
0.5 h; Cooling with iceInert atmosphere;
2: ethyl α-bromobutyrate in tetrahydrofuran; mineral oil
T=20°C; 72 h; Inert atmosphere;
Perumal, Subbu; Chandrasekaran, Ramasubbu; Vijayabaskar, Veerappan; Wilson, David A.
Magnetic Resonance in Chemistry, 1995 , vol. 33, # 10 p. 779 - 790