Topic
Hydrazone
About: Hydrazone is a research topic. Over the lifetime, 4853 publications have been published within this topic receiving 65160 citations. The topic is also known as: hydrazone.
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TL;DR: In this article, the Lewis-acid-promoted reaction of allyltrimethylsilane with enones was shown to afford the 3-allyl ketone derivatives (Sakurai products) along with the trimethylsilylcyclopentanes ([3+2] cycloaddition products).
29 citations
TL;DR: In this paper, the diorganotin(IV)-dibasic reaction of the hydrazone ligands N′-(5-bromo-2-hydroxybenzylidene) isonicotinohydrazide (H2La), N′-((2,4-dihydroxynaphthalen-1-yl)methylene), isonic-isonic-drugs (H 2Lb) with Diorganin(IV) dichloride, and H2Lc with diorginin(
29 citations
TL;DR: The method forms di-, tri-, and even tetrasubstituted acetones with high efficiency, and it has streamlined a synthesis of (-)-dihydrocuscohygrine in which the absolute stereochemistry of a proline-based starting material is preserved.
Abstract: This work offers a catalytic approach to convergent ketone assembly based upon formal and tandem C–H insertion of diazoalkanes in the presence of limiting amounts of monomeric formaldehyde, which is easily generated as a gas by thermolysis of the inexpensive and abundant paraformaldehyde (∼30 USD/kg). The method forms di-, tri-, and even tetrasubstituted acetones with high efficiency, and it has streamlined a synthesis of (−)-dihydrocuscohygrine in which the absolute stereochemistry of a proline-based starting material is preserved. Assisted by the advent of new protocols for hydrazone oxidation, we also provide full details on handling non-carbonyl-stabilized diazo compounds.
29 citations
Patent•
07 Oct 1987TL;DR: In this paper, an antineoplastic indole-dihydroindole vinca alkaloid containing a hydrazine group attached at C-3 or C-4 with an oxidized glycoprotein containing aldehyde groups was formed.
Abstract: Immunoglobulin conjugates formed by reaction of an antineoplastic indole-dihydroindole vinca alkaloid containing a hydrazine group attached at C-3 or C-4 with an oxidized glycoprotein containing aldehyde groups.
28 citations
TL;DR: The packing arrangement molecules in crystals of AMBTH-H(2), the redox features of the AMB TH-hexamolybdate hybrid together with a good electronic communication between the organic pi system and the molybdenum centres make these compounds very promising blocks for the synthesis of conducting molecular materials.
Abstract: The electroactive benzothiazole hydrazone AMBTH-H(2), a new member of the 2,2'-azino-bis(N-alkylbenzothiazole) family, was synthesised in a five-step procedure and characterised by using X-ray diffraction along with two intermediates and the N-methylbenzothiazole hydrazone MBTH-H(2). Both AMBTH-H(2) and MBTH-H(2) were coupled to [Mo(6)O(19)](2-) in acetonitrile in the presence of dicyclohexylcarbodiimide and dimethylaminopyridine to give two new diazoalkane-hexamolybdates, which were isolated as tetrabutylammonium salts and characterised by using IR, UV/Vis and NMR spectroscopies, cyclic voltammetry and, for one of them, X-ray diffraction. The packing arrangement molecules in crystals of AMBTH-H(2), the redox features of the AMBTH-hexamolybdate hybrid together with a good electronic communication between the organic pi system and the molybdenum centres make these compounds very promising blocks for the synthesis of conducting molecular materials.
28 citations