Then under the optimal conditions (2.0 mL glycol and 120°C),several aldehydes were separately reacted with various enaminones and malononitrile to obtain different products (Scheme 6).
Clˉ, Brˉ, NO3ˉ, SO42ˉ, ClO4ˉ and AcOˉ in order to determine the effect of the anions on the formed products (Scheme 3).
Initial studies show PFCP aryl ether polymers react with dinucleophiles, undergo cross-linking in different reaction conditions and give insoluble products (Scheme 8).
In the present study, we have established that reaction of acetylpyrazole 1 with N-thiosemicarbazide 16 and aryl carbohydrazonoyl chlorides 3d, g gave the respective 1,3,4-thiadiazoles 23a, b as the end products (Scheme 5; Table 1).
Here, attack on PFCA ring by phenoxide ion, resulted in situ due to action of base on bisphenol, generates a carbanion on perfluorocycloalkene ring which, theoretically, can eliminate fluoride ion resulting in allyl and vinyl substituted products (Scheme 3).
Subsequent H-elimination delivers the observed products (Scheme 7).
Herein, we report our findings on the synthesis of α-branched ketone products (Scheme 1 C).
All potential products from PikKR2 reduction of thioether substrate mimics 12 and 13 were synthesized as authentic standards for analytical comparison to the enzymatic products (Scheme 3).
Conjugative enzymes can catalyze reactions of primary oxidation products (Scheme 3) to give new products that are either bioactivated or unreactive (detoxification).
To highlight the utility of the enantioselective trifluoromethylation developed in this work, the authors demonstrated highly diastereoselective transformations of the trifluoromethylated products (Scheme 115).
