Chloro cyclO

In C6H6C16 the carbons are in a six- membered ring. I will name it, you draw it hexachlorocyclohexane, or to help you see what is present, hexa chloro cyclo hexane. 

Side products are observed in the case of both carbenes for example, 1-chlorocyclobutene was formed from chloro(cyclopropyl)carbene via 1,2-carbon shift (kinetic and activation parameters °° of this rearrangement have been studied), and products of 1,2-carbon and hydride shifts (kinetics of these reactions have been investigated ) for chloro(cyclo-butyl)carbene. The chloro(cyclobutyl)carbene is particularly prone to these rearrangements. 

Phenyl-l,2,4-triazolinedione reacts with the valence isomer of cyclo-octatetraene in the expected [4 + 2] manner reaction to give (58) probably proceeds via a dipolar intermediate. In support of this view fluoro- and chloro-cyclo-octatetraene do not, but bromo- and iodo-cyclo-octatetraene do give adducts of type (58). Methoxy- and phenoxy-cyclo-octatetraene favour adducts of type (58). 

In the chloro series, the compounds to be considered are N=S-C1, cyc/o-N3S3Cl3, cyclo-N3S3CI3O3, and cyc/o-N4S4Cl2 the ionic compounds [S4N3]" "C1 and [cyc/o-N2S3Cl]+Cl and [c<2/ <2-N(SCl)2] [BCl4] together with various isomeric oxo- and fluoro-chloro derivatives. Thi-azyl chloride, NSCl, is best obtained by pyrolysis of the trimer in vacuum at 100°. It can also be made by the reaction of CI2 on NSF (note that... 

In a further extension of this method, the enolate of the bislactim ether cyclo(L-Val-Gly) or cyclo(L-Val-Ala) were added to methyl (Z)-3-chloro-2-butenoate. The adduct is again a (Z)- ,/l-unsaturated ester and was obtained as a single diastereomer (d.r. > 99 l)207. For further examples see references cited ill the text. 

MoC15 promotes the ring-opening transformations of cyclopropyl ketones. Cyclopropyl phenyl ketone 251 is converted to 1-phenyl-1,2,4-trichloro-1-butene 252. Desilylative lactonization of propyl 2-(trimethylsilylmethyl)cyclo-propanecarboxylate 253 yields ds-2-chloro-4-pentanolide 254 stereoselectively [144]. (Scheme 100)... 

Carbosulfenylation of alkenes. This organotitanium reagent reacts with the trans-p-chloro sulfide 2a, formed by addition of phenylsulfenyl chloride to cyclo-... 

The synthesis of [1.1.1]propellane from 1 is essentially as reported by Michl and co-workers,10 with only a slight modification in the process of transferring the crude propellane solution. As a result of the submitters improvements in the preparation of 3-chloro-2-(chloromethy)propene4 and 1,1-dibromo-2,2-bis(chloromethyl)cyclO propane, many of the difficulties in the Szeimies route to [1.1,1]propellane have been eliminated. 

The asymmetric syntheses of carnosadine (lS,2S)-74 [101] and of its protected derivatives as conformationally constrained surrogates for arginine have also been reported [102]. Different 2-substituted 1-aminocyclopropanecarboxylic acids have also been prepared by azidation of optically active 2-chloro-2-cyclo-propylideneacetates [103] and from the cyclopropanation of chiral bicyclic lactams [104]. 

Schemes. Dimerizations and other [2-1-2] cyclo additions of methyl 2-chloro-2-cyclopropyl-ideneacetate (1-Me) and its phenylthio analog 3-SPh [7h, 15,29,30]...

Scheme 65. MIMIRC reactions of lithium cyclohexadienolates 226 to methyl 2-chloro-2-cyclo-propylideneacetate (1-Me) [28,104b, 106-108]...

CCh Chloro- form Di- Pentane Heptane Cyclo- Benzene Toluene chloro- hexane methane ... 

Cyclo(alkylperoxyorgano)siloxanes are prepared from the corresponding cyclo(chloro-organo)siloxanes with alkyl hydroperoxide in the presence of ammonia (eqnation 23) . ... 

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