Propose a synthesis of N-ethylcyclopentanamine from cyclopentanol.

Synthesis pathway for N-ethylcyclopentanamine from cyclopentanol using CrO3 and NaBH3CN.

Synthesis of N-ethylcyclopentanamine from cyclopentanol using Na metal and NH2.

Synthesis of N-ethylcyclopentanamine from cyclopentanol using NH2 and NaBH3CN.

Synthesis of N-ethylcyclopentanamine from cyclopentanol using Na2Cr2O7 and NaBH3CN.