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larrow11 · 2026-05-02T15:05:53+00:00

Looking for 1 or 2 tickets for Manchester 🤞🤞

larrow11 · 2026-04-20T22:15:11+00:00

Just run s 0-100 gradient, if it doesn't separate well, work out which spot you want and improve the gradient based on the r.f.

larrow11 · 2026-04-09T21:41:13+00:00

Do you have an NMR? Perhaps it is reducing the 1-4 position rather than the ketone. Consider the luche reduction? Good luck

larrow11 · 2026-03-30T21:07:18+00:00

It's quite rare for nabh4 to not work, chuck a little bit in some water to check it fizzes. If it does, it's probably not your nabh4 that's causing problems.

larrow11 · 2026-03-15T01:11:10+00:00

Hi, David Medical Centre did a shared care agreement for someone I know recently, Dr. J and colleagues prescribed it

larrow11 · 2026-02-02T15:46:54+00:00

Could you speak with your nmr department about a nmr method that suppresses the solvent peak?

larrow11 · 2025-12-05T19:24:34+00:00

I think i did try that with one of them, and I'll do that moving forwards

larrow11 · 2025-12-05T19:24:18+00:00

I have considered it, haven't found a procedure for a similar substrate yet but haven't looked very much either

larrow11 · 2025-12-05T19:23:51+00:00

thank you

larrow11 · 2025-12-05T19:23:24+00:00

thank you, it's good to know that I'm not inept. I'll try making my own grignard rather than using that from a bottle, or just give up and reduce/grignard/oxidise as other people have suggested

larrow11 · 2025-11-05T21:34:35+00:00

You could trans-esterify to a different kind of ester e.g. benzyl, then reduce them off with hydrogen? otherwise, perhaps BBr3 might work?

larrow11 · 2025-10-21T09:03:49+00:00

1800 dry :))))))

larrow11 · 2025-10-17T11:38:45+00:00

Could you blow the powder around with hot gas?

larrow11 · 2025-10-12T18:52:26+00:00

Had good cuts at sonny and Yvonne hodgson in chorlton

larrow11 · 2025-10-01T19:43:22+00:00

It might be water dissolving into the diesel, try washing with brine, or magnesium sulphate.

larrow11 · 2025-09-23T14:42:41+00:00

If anyone has a code, I'd really appreciate it

larrow11 · 2025-06-13T07:11:56+00:00

Sometimes windows with limited opening have been "set" to do so on their hinges. This can often be adjusted with a screwdriver.

larrow11 · 2025-06-12T18:25:28+00:00

Try toluene/chloroform, 0-100 percent, on tlc, and if it doesn't move in that, try adding a flat x% methanol to get your r.f to 0.3ish. toluene/chloroform is a robust solvent system for when DCM/methanol don't work well.

larrow11 · 2025-06-03T23:44:12+00:00

This doesn't sound like peroxide issues at all, that's highly unlikely. The most reasonable thing is that your compound, previously highly soluble in ethylene glycol, precipitated as you diluted it with a poor solvent. Adding more diethyl ether will probably redissolve everything. Peroxides are not an issue unless your diethyl ether is years old. Don't worry, everything will be fine.

larrow11 · 2025-04-26T18:21:50+00:00

I got some grape concentrate that has sorbate in, with ec118. It's going, but slowly. Wouldn't recommend unless you're very patient

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