Undecane 1-chloro

Initial work was carried out with 3,9-bis(methylene-2,4,8,10-tetraoxaspiro[5,5] undecane) where R = H (11). However, this monomer contains two electron donor alkoxy groups on one double bond which is thus highly susceptible to a cationic polymerization. For this reason, the monomer is extremely difficult to handle and cannot be analyzed by gas chromatography since it does not survive passage through the column. It is prepared by the dehydrohalogen-ation reaction of the reaction product of pentaerythritol and chloro-acetaldehyde,... 

Treatment of 6-chloro-2-hydroxy-6-methyltricyclo[5.4.0.015]undecane-7-carboxylic acid lactone with potassium to7-butoxide gave 2-hydroxy-6-methylenetricyclo[5.4.0.01,5]undecane-7-carboxylic acid lactone (15).178... 

A mixture of 6-chloro-2-hydroxy-6-mcthyltricydo[5.4.0.01,5]undecane-7-carboxylic acid lactone (300 mg, 1.25 mmol) and r-BuOK (561 mg, 5.00 mmol) in anhyd THF (5 mL) was stirred at rt for 20 min and 5% aq HC1 (10 mL) was added. The aqueous layer was extracted with Et20 (3x15 mL). The combined organic phases were washed with sat. Nall CO, and brine, and dried (MgS04). Evaporation and purification by flash chromatography (silica gel, 20% EtOAc/ hcxanc) afforded the alkene yield 180 mg (71%). 

Hydrolysis of the 10-chloro derivative 36 in 0.5 M sodium hydroxide solution at 50°C for 6 hr gave the 2,6-diazabicyclo[5.4.0]undecan-l-one (39), probably via the 11-membered azalactam (38) through intramolecular alkylation (84JHC583). 

Functionalization of nanorods with polyelectrolytes has been carried out by layer-by-layer deposition (92). First, CTAB-coated nanorods are prepared. Since these nanorods are positively charged, they can adsorb cationic and anionic poly electrolytes. Functionalization of nanorods with dyes is possible a fluorescent dye, 4-chloro-7-nitrobenzofurazan has been functionalized on the surface of Ti02 nanorods (93). Functionalization with a photoactive molecule such as ruthenium(II) tris(bipyridine) is also possible (94). A thiol derivative of the bipyridyl complex (Ru(bpy)3+-Cs-SH) in dodecane thiol is used for the functionalization of gold nanorods. Functionalization of block magnetic nanorods is very useful (95), for example, in the separation of proteins. Consider a triblock nanorod consisting of only two metals, Ni and Au. If the Au blocks are functionalized with a thiol (e.g. 11-amino-1 undecane thiol) followed by covalent attachment of nitrostreptavidin, then one can... 

Cl8H2eCuNft, Bis(N-t-butylpyrrole-2-carbaldimino)copper(II), 38B, 930 Cl 8H2 sNiiNi, Bis(N-t-butylpyrrole-2-carbaldimino)nickel(II), 38B, 931 Cl8H27Cl5COaNs 0.5 HaO, Chloro(l,11-bis(2-pyridyl)-2,6,l0-triaza-undecane)cobalt(III) tetrachlorocobaltate(II) hemihydrate, 46B,... 

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