Cycloaddition reactions of carbonyl compounds possessing high energy content

Condensation Reactions of 2-Aminobenzohydrazide with Various Carbonyl Compounds

Technical iodine was found to catalyze the condensation between 2-aminobenzohydrazide (1) and some aldehydes and ketones in absolute ethanol under mild conditions to afford hydrazone and quinazoline derivatives, respectively. Condensation of 1 with terephthalaldehyde (2) in 1 : 1 molar ratios afforded the hydrazone 3, while hydrazone 4 was formed on using a double molar ratio of 1. On the other...

Protective effect of phenolic compounds on carbonyl-amine reactions

Reactions of a hydrido(hydrosilylene)ruthenium complex with carbonyl compounds.

Reactions of a neutral silyleneruthenium complex with ketones and aldehydes, and isolation of their agostic intermediates are reported, where an alpha-H abstraction or hydrosilylation of the carbonyl compounds occurs depending on the substituents of the substrates.

Role of Titnium Reagents in Carbonyl Compounds Reactions

This article describes some important organic reactions catalyzed by different titanium-reagents. Combinatorial approach and green procedures involving the use of titanium reagents with other transition-metals (such as Sm, Pd, Sn and Zn) in photochemical procedures, and with the auxiliary techniques like microwaves for environmental friendly reaction conditions, are also discussed.

Reactions of cyclopentadienyl-amidinate titanium imido compounds with CO2: cycloaddition-extrusion vs. cycloaddition-insertion.

A combined experimental and DFT study of the reactions of cyclopentadienyl-amidinate titanium imido complexes with CO(2) is reported. Cycloaddition reactions of the aryl imido compounds Ti(eta-C(5)R(4)Me)(NAr){R(2)C(NR(1))(2)} (R = H or Me; R(1), R(2) = SiMe(3), Ph or (i)Pr, Me) with CO(2) gave the corresponding N,O-bound carbamate complexes Ti(eta-C(5)R(4)Me){N(Ar)C(O)O}{R(2)C(NR(1))(2)}. Thes...