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Part-IIImpact of Microwave…synthetic strategy constitutes a novel and attractive avenue for the rapid generation ofstructurally diverse libraries.NO 2NO 2OH 3 COOO 2 NNH 2n O+NO 2Et 3 NFR 1FFMWI, 150 W,7 minOH 3 COOnONHR 1R 2 NH 2MWI, 150 W,10 minR 2 R 3R 1NNPd/HCOONH 4R 2HNNO 2NO 2ONH34NR 3 CHO, MWI, 150 W7 minH 3 COOnOONHR 1Microwave-assisted synthesis of hydrochloride salts of primary amines 35 from theircorresponding halides and 7 M ammonia in methanol has been described by Saulnier etal. 38 It provides practically high yields, with even volatile primary amines for parallelsynthesis.ClNH 3 + Cl -NN7M NH 3 , MeOHMWI, 130 o C, 2.5 hNN35The library (34 compounds) synthesis of substituted pyrazoles and isoxazoles 36 has beendeveloped via the in situ generation of polymer-bound enaminones. This new supportallowed carrying out reactions in polar solvents under both conventional heating and MWirradiation without degradation of the polymer. 39290

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