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Part-IIImpact of Microwave…XX(C 6 F 13 H 2 CH 2 C) 3 Sn + I11X = 4-OCH 3 , 2-CF 3 , 4-Ph, 4-CH 3 ,4-COCH 3 , 3-CHO, etcMicrowave-assisted palladium-catalyzed coupling of aryl and heteroaryl boronic acidswith iodo- and bromo-substituted benzoic acids, anchored to tentagel S RAM, providedhigh isolated yields of coupled products 12 after a reaction time of 3.8 min. In all 16compounds have been synthesized. 19RAMNHXO(Bu 3 )Sn+X = I or BrYMWI, 3.8 min,40 WH 2 NO12Y = H, 4-OCH 3 , 2-OCH 3 , 4-F, 3-NO 2 etcYGeorgsson et al., 20 has described a noninert palladium catalyzed method for the synthesisof ester-protected carboxylic acids 13 from aryl iodides and bromides, employingmolybdenum hexacarbonyl [Mo(CO) 6 ] as a convenient solid carbon monoxide source.Thus, butyl-, benzyl- and trimethylsilylethyl esters were smoothly prepared after only 15-20 minutes of microwave heating. This in situ carbonylation route couples a facileexperimental procedure to handle “carbon monoxide gas” in a highthroughput manner,with the rapid reaction speed associated with single-mode microwave irradiation. Themethodology is quite applicable to today’s modern synthetic techniques, both in solutionand in solid-phase organic chemistry. In all 16 compounds have been reported.OR 1 + R 2 OHXMo(CO) 6 ,[Pd]R 1OR 2MWI, 150-190 o C15-20 min13X = I, BrR 1 = 1-naphthyl, 4-OCH 3 , 2-CH 3 , 4-CF 3 , 3-BrR 2 = n-Bu, CH 2 CH 2 Si(CH 3 ) 3 , t-BuAn efficient copper-catalyzed cross-coupling of aryl iodides with aryl acetylenes to givecompounds of structure 14 under microwave irradiation has been described by Huan et280