Cyclopentylhydrazine hydrochloride

Step 2: The mixture of tert-butyl carbazate (5.130 g, 38.04 mmol) and cyclopentanone(3.232 g, 38.04 mmol) in hexane (50 mL) was heated at reflux for 60 minutes.White solid thus obtained was filtered and washed with hexane. 6.552 g ofintermediate compound (Schiff’s base) were obtained. To this compound, 1 .01eq. of 1M borane soLution in tetrahydrofuran were added to obtain a clear mixture. The whole was stirred at room temperature until cLear mixture was obtained. The mixture was stirred at room temperature until the evolution of hydrogen ceased (10 minutes). Then 6 eq. of 6M HCl were added and the mixturewas heated at reflux for 45 minutes. The whole was concentrated to the constant weight to obtain 7.11 g of a crystalline, white solid. The solid was washed with tetrahydrofuran and filtered. 5.576 g of the title product in the form of white powder were obtained (yield 84.7percent).

Molecular Weight:136.62
Hydrogen Bond Donor Count:3
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:1
Exact Mass:136.0767261
Monoisotopic Mass:136.0767261
Topological Polar Surface Area:38
Heavy Atom Count:8
Complexity:48
Covalently-Bonded Unit Count:2
Compound Is Canonicalized:Yes