OK, I've got dry dichloromethane ready to go, right out of the Aldrich bottle. It's not like dichloromethane ever gets all that wet, not compared to something like THF. Stuff's a sponge. Man, I remember the days when we had to distill that fresh from sodium metal. And the fires! Now we just pay more money and it comes in a syringe-sealed bottle. What a deal. Beats calling the fire department once a month.
Bottled dry solvents! I'd have called that the height of decadent luxury back in grad school. Of course, a lot of stuff looked like the H. of D. L. at the time, have to keep that in mind - minimum wage would have been a real pay raise, considering the hours. . .took years before I could look at ramen noodles again, and that week where all I had in the place was a jar of peanut butter - smooth, too, worse luck. . .
Where was I? Dichloromethane. And my starting material, which was the right stuff two weeks ago and better not have changed into something else. Looks the same, anyway. I should take better care of this stuff. And thionyl chloride, hmmm - used to be a big bottle of it over here, but stuff moves around. I only do a fraction of the chemistry that goes on in this lab any more, and things get rearranged without me finding out about it.
Nope, not here. Must be some next door. . .what kind of research organization is this, anyway, that doesn't have thionyl chloride lying around? Sheesh. I spent half an hour the other day looking for a bottle of iodine. Everyone was supposed to have it, according to the Infallible Inventory System, but half the folks I asked had just loaned it out to someone - couldn't remember who - and the other half looked at me as if I'd asked them for Eye of Newt or something.
Ah, here we go, and the label's not even scorched off or anything. Must be good stuff. You've got to be either a serious chemist or an idiot to order an 800-mL bottle of reagents like this, though. Going to go bad by the time you get to the end of it, unless you've got a couple of big 250-mL chunk-style reactions to get through. Sure isn't one of 'em here. . .zero-point-three-five mL, right. You feel like a fool taking 0.35 mL out of an 800 mL bottle, but what the hey.
And a drop of DMF, to move things along, and that's that. I'm not sure that I'd trust a synthetic chemist who doesn't know the drop-of-DMF trick to speed up a thionyl chloride reaction. Something lacking in their education. . .probably didn't spend enough hours in the lab during grad school. Or maybe they didn't eat enough peanut butter. . .yeah. . .that must be it. . .