 Okay, so how do I synthesize nitrials? There's a couple of ways to synthesize them, one you already know from organic one, it's the synthesis of a nitrile through SN2 reaction using an alkyl halide and sodium cyanide. So this again is going to be an SN2 reaction. So sodium cyanide, sodium CN minus, so cyanide actually looks like this, and where does the negative charge line on this carbon, of course, right? Okay, so this thing, primary alkyl halide, right, goes primary or secondary, probably do the SN2 mechanism. In fact, this is the way to make primary or secondary nitrile. You can't make a tertiary nitrile doing it this way. Why? Because SN2 reactions don't happen where there's a lot of steric bulk, right? And you can't hit that backside if you've got a big backside. Okay? So knock it out, and there's your one step reaction, and in fact, I'm going to draw it, not that it matters at all, but just to emphasize that we did that backside attack. Is everybody cool with that? The mechanisms were easy. Any questions? Okay. Thank you. Bye. Bye. Bye. Bye.