Synthesis of, III

Manasevit HM (1968) Appl Phys Lett 12 156. Prior to this study, Didchenko et al. as well as Harrison and Tomkins described the synthesis of III-V material powders by reaction of group 13 trialkyls and group 15 hydrides (a) Didchenko R, Alix JD, Toeniskoettler RH (1960) J Inorg Chem 4 35 (b) Harrison B, Tomkins EH (1962) Inorg Chem 1 951... 

Qian Y (1999) Solvothermal synthesis of III-V nanociystalline semiconductors. Adv Mater 11 1101-1102... 

Working the problem backwards in a stepwise fashion, (he synthesis of III-c becomes... 

The synthesis of III-c, working backwards in a stepwise manner, now becomes... 

In the synthesis of (III. 15) and (III.16) by Rosowsky and Chen [21], which was an application of the regioselective Taylor pteridine synthesis [22-24], 2-amino-5-chloromethyl-3-cyano-6-methylpyrazine A-oxide was condensed with diethyl A-[4-(A-methylamino)benzoyl]-L-glutamate, the A-oxide group was removed with triethyl phosphite in DMF at 125 °C, and the resultant pyrazine amino nitrile was condensed with gujmidine. Brief hydrolysis (15 min, 1 M NaOH in refluxing EtOH) led to (III. 15), and chlorination of (III.15) at 5 °C afforded the 3, 5 -dichloro derivative (III.16). Ultraviolet absorption spectra of (III. 15) and (III. 16) in 0.1 M NaOH were consistent with those reported in the literature for MTX and DCM, except for small... 

In the Taylor synthesis of (III.28) [31], aldehyde (HI.32) was obtained by reaction of2-amino-3-cyano-5-(dimethoxymethyl)pyridine and guanidine, followed by cleavage of the acetal with aqueous formic acid. The pyridine aminonitrile was elaborated in a sequence of high-yield steps from 3-cyano-5-methylpyridine-2-thione. These steps consisted of the following (yields in... 

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