Di carbonate

The 60 MHz NMR spectrum of dibenzothiophene has been measured in chloroform-di, carbon tetrachloride, and acetone. The 100 MHz spectrum, which is shown in Fig. 1, has been measured in... 

Oeomrmwe. -Jn nature in dolomite, the calcio magnesic di> carbonate,... 

Carbon formation can then proceed in various ways. The di-carbon species shown above may break down to mono-carbon species then polymerise, or polymerisation may occur without this. Processes in which free radicals occur, or acidity in the catalyst, both encourage this, and (as noted above) catalysts for dehydrogenation must be neutral or basic to prevent acid-catalysed reactions of the alkene. The more dehydrogenated the reactant hydrocarbon, the greater the tendency to carbon formation alkadienes and aromatics are notorious in this respect. With alkanes, increase in molar mass (i.e. the number of C—H bonds) also assists degenerate events. 

Dimethyl-oyoIohexandion-(3.6)-di< carbons nre-(2.6)-diithylester 10 1 437. Dimethyl-auoomylobenutema ure-ditthyb eater 10. 899.1438. 

Dinitra.aiphe ylmethan-di carbon a6aze-(4.40 9. 930, II686. 

CggHwClgOu 3,6-Diohk>r-2.5K)i thoxy-beiizo< chinon-(1.4)-bi8.mono thylaoem.O.O-di< carbons are-diat ylester 8, 382. 

Phenol Di Carbonate 90 380 193 E - - - plus 11 percent phenol and 1 percent AlCIa... 

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