Cycloalkyl 2-propyl

O-Alkyl (less than or equal to CIO, including cycloalkyl) alkyl (methyl, ethyl, propyl, or isopropyl) phosphonofluoridates, or... 

In an analogous manner to the behavior of the tabun family, branching of the alkyl/cycloalkyl chain does not have a large influence, and mass spectra of a few compounds are generally sufficient for the primary identification of VX family members. A series of El mass spectra of O-alkyl/cycloalkyl 5-2-dialkyl aminoethy 1 alkyl(ethyl, isopropyl, or propyl)phosphonothiolates has been recorded and contributed to the OPCW Analytical Database. 

Pyrazolidin 1,2-Bis-[2-methyl-propyl]-4-hydroxy- E16a, 554 (Hydrazin-1,2-Cycloalkyl.)... 

The correspondence in the spectroscopic properties of 102 with those of 101 suggests that the parent ion (101) can also be best presented in the same way. The 1-ethyl and 1-propyl analogs of 102 are similarly nonclassical but rearrange irreversibly upon warming to cycloalkyl cations. ... 

O-R, RjJhosphonofluoridate R, C1methyl ethyl n-propyl isopropyl... 

Rl andRj. ..methyl-, ethyl-, n-propyl- and i-propyl- R2...alkyl(H or[Pg.110]

Unlike the isomerization of l-chloro[l- C]butane with aluminium trichloride, which proceeds without major participation of protonated cyclo-propanes, the isotopic scrambling from the reaction of [l- C]-l-propyl-mercuric perchlorate in trifluoroacetic acid does require intermediate protonated cyclopropanes. The isolated 1-propyl trifluoroacetate (565) was shown by degradation to have the label distributed as shown in Scheme 76. The greater scrambling from C-1 to C-3 than from C-1 to C-2 requires an edge-rather than a comer-protonated ion. Full details have appeared of the liquid-phase thermolyses of cycloalkyl and cycloalkylmethyl chloroformates which take place via carbonium ions. Protonated cyclopropanes are believed to be intermediates for 5-10% of the products. The alkylation of benzene and toluene by cyclopropane with acidic catalysts also involves initial formation of a protonated cyclopropane. ... 

In the alkyl radical series, there seems to be some tendency for the ionization potential to decrease as the chain length increases e.g., the scries ethyl, 8.78 e.v. propyl, 8.69 e.v. and butyl, 8.64 e.v. In these cases, the effect is actually within the experimental error and there is an exception (isopropyl, 7.90 e.v. 2-butyl, 7.93 e.v.). Nevertheless, this tendency is reflected repeatedly in various types of compounds vide infra) and appears to indicate distribution of the positive charge throughout the entire molecule that is, electrons down an aliphatic chain help to ameliorate the electron deficiency at the trivalent carbon. This effect of increasing size is also shown in the /-values of cycloalkyl radicals (Table VI). 

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