Improved Methods for the Synthesis of KB3H8, NH3B3H7, and N-Alkyl Analogues of NH3B3H7

Improved methods for the synthesis of KB3H8, NH3B3H7, and N-alkyl analogues of NH3B3H7 have been developed based on previous works. KB3H8 was synthesized by the reaction of metallic potassium (K) with borane dimethyl sulfide ((CH3)(2)S center dot BH3) with high yield and atom-economy. In the preparation of NH3B3H7 and its N-alkyl analogues, KB3H8 served as a starting material and was converted to THF center dot B3H7 first through reactions with HCl diethyl ether solution or oxidation agent CoCl2. Then, the formed THF center dot B3H7 in situ reacted with the corresponding ammonia or amines to form the amine borane final products. This work paves an alternative way for preparing organic-inorganic hybrid materials containing B, N, and C atoms.

Automated summary

Improved methods have been developed for the synthesis of KB3H8, NH3B3H7, and N-alkyl analogues of NH3B3H7 based on previous works. These methods provide an alternative way for preparing organic-inorganic hybrid materials containing B, N, and C atoms.