high-boiling mineral oil; sodium amide T=160 - 165°C;

(t-Bu)2CuLi in diethyl ether T=-78°C; also at 0 deg C; MechanismProduct distribution;

T=160 - 165°C;

sodium hydroxide; ThxBHI*SMe2; dihydrogen peroxide directive effect of thexylhaloborane-methyl sulfide in the hydroboration of alkynes; further reagents; multistep reaction; Product distribution;