large crystal

1、Can Nabh4 be replaced by (CH3COO)3BHNa?（C6H10BNaO6） 2、In the route of p2np and Nabh4, can I add formaldehyde or methylamine to directly methylate the product? 3、After the amphetamine is split, the D-amphetamine oil needs to be dissolved in acetone and toluene with HCI bubbling Can we get big...