Advances in the Chemistry of the Acetals of Acid Amides and Lactams

Abstract

We show how Supersymmetric Ward Identities can be used to obtain amplitudes involving gluinos or adjoint scalars from purely gluonic amplitudes. We obtain results for all one-loop six-point NMHV amplitudes in N = 4 Super Yang-Mills theory which involve two gluinos or two scalar particles. More general cases are also discussed.

Reaction of 2-(1-aryl-5-phenylpyrazol-4-yl)-1H-benzimidazoles with the dimethylacetal of DMF

“…This conclusion did not contradict the 1 H NMR spectral data, the elemental analysis, and information [2] on the existence of polycondensation of heterocyclic systems of this type. The result appeared to be unusual on the background of known [3][4][5] properties of the dimethylacetal of DMF. N N N N H Ar Ph N N N N Ar H OMe Ph N N N N Me Ar Ph Me 2 NCH(OMe) 2 -MeOH, -HCONMe 2 1a,b 3a,b 2a,b 1-3 a Ar = Ph, b Ar = 4-O 2 NC 6 H 4…”

Dimethylformamide dimethyl acetal as a building block in heterocyclic synthesis

“…DMFDMA acts as methylating agent [11,12] so that it has been used in the synthesis of methyl esters from acids, methyl ethers and thioethers from phenols and aromatic or heterocyclic thiols, and the methylation of active methines as shown in Scheme 1.…”

“…DMFDMA can also be used for cyclization of two functional groups to give heterocyclic compounds [11].…”

Functional derivatives of tetramic acid: New approaches to the synthesis of heterotricyclic compounds

“…The latter product was also directly obtained by heating compound IVc with DMF diethylacetal (VII), which is known to be a highly active and selective O-alkylating agent with respect to enol groups possessing sufficiently high acidity [3]. It should be also noted that, under conditions favoring rapid hydrolysis of the methoxycarbonyl group followed by decarboxylation of the resulting carboxylic acid, the reaction of compound II with aldehydes proceeds differently and leads to the formation of 3-arylidenepyrrolidine-2,4-diones VIIIa -VIIIe.…”