- What is the formally correct notation of t-Bu, i-Pr, p-NO2, n-Bu, a-HCl . . .
I've also seen them written simply as tBu, iPr, and nBu They're abbreviations for tert -butyl, isopropyl, n-butyl (straight-chain), and cyclo -hexyl respectively
- What is the meaning of n-Pr and i-Pr? - Chemistry Stack Exchange
Apologies in advance, I have a background in physics, so this question might seem awfully simple Anyway, I am interested in the chiral spin selectivity effect in organic molecules, and have read a
- nomenclature - What are the practices to naming organic chemicals by . . .
Is there a preferred method to writing organic chemicals by abbreviation? I am finding it hard to decipher the methods I see in writing For example $\\ce{EtOH}$ is ethanol, which makes sense, but
- Is the i prefix for iso- italicised? - Chemistry Stack Exchange
See in particular Table II on page 406, which gives the following forms: iPr, iBu, s -Bu, and t -Bu (which is in line with the Blue Book) It says that if you choose these abbreviations, then explicitly defining them is unnecessary
- organic chemistry - Newman projections: how to tell which groups are . . .
This difference in steric effects can be used to help predict reactivity in chemical reactions I guess what you're looking for are A-values The higher the A-value, the more "bulky" the group is considered So, the $\ce {-SH}$, $\ce {-Cl}$ and $\ce {-Br}$ groups seem to be less hindering than the $\ce {-iPr}$ group References: A-value, Wikipedia
- Which has higher priority according to Cahn-Ingold-Prelog priority . . .
According to my textbook, vinyl has higher priority than isopropyl, because an atom which is connected by a double bond can be treated as two identical atoms (one of them is just an imaginary atom)
- organic chemistry - Stereoselective enolate formation with different . . .
Probably there is a fourth mechanism which I'm more interested in than the other three: Addition of a lewis acid a1) Bu2BOTf (iPr)2NEt gives the cis enolate, b1) Cy2BCl NEt3 gives the trans-enolate because of the bulky Cy
- organic chemistry - Relationship between thermodynamics and steric . . .
I am investigating reactions with alkyl-substituted amines ($\\ce{R} = \\ce{Me}, \\ce{Et}, \\ce{^iPr}, \\ce{^tBu}$) and a second reagent, in which product Z is formed
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