A new method for the preparation of alkyl aryl sulfides through direct oxidative thiolation of alkanes or ethers with arylsulfonyl hydrazides using di-tert-butyl peroxide (DTBP) as an oxidant catalyzed by Pd(OAc)2 has been reported. The C-H bonds in various alkanes or ethers were successfully converted into C-S bonds to yield the corresponding sulfides in moderate to good yields.

In this communication we describe a novel strategy for the formation of valuable diaryl and aryl alkyl ketones from acyl hydrazides. A wide variety of ketones are prepared and the mild reaction conditions allow for the use of a range of functionalities, especially in the synthesis of diaryl ketones.

A new synthesis of sulfonamides has been developed via an iodine-catalyzed sulfonylation of amines with arylsulfonyl hydrazides. This metal-free strategy employs readily accessible and easy to handle starting materials, catalysts and oxidants, and can be easily conducted under mild conditions, providing a convenient access to a wide range of sulfonamides in moderate to excellent yields within a...

The first general two-step, one-pot synthetic route to 6-azopurines is presented. Microwave-assisted nucleophilic aromatic substitution of protected 6-chloropurines with hydrazines or hydrazides, followed by metal-free oxidation with oxygen, gives 6-azopurines in high to excellent yields. Photophysical studies revealed intensive n-π* absorption band that makes trans-to-cis photoswitching possib...

An application of readily available hydrazides in the Petasis 3-component coupling reaction is presented. An investigation of the substrate scope was performed to establish a general, synthetically useful protocol for the formation of hydrazido alcohols, which were selectively converted to oxazolidinone and oxadiazolone ring systems through triphosgene-mediated cyclization reactions.

In the title compound, C(7)H(8)N(2)O(2), the mean planes of the benzene ring and the planar hydrazide group are inclined at 25.75 (6)° with respect to each other. The structure is stabilized by inter-molecular N-H⋯O and O-H⋯N hydrogen bonds.

Enhancing the efficiency and maneuverability of organic synthesis constitutes one of the most exciting challenges to synthetic chemists. Within the last decade, green chemistry has attained the status of a major scientific discipline. The investigation and application of green chemistry principles has led to the development of cleaner and more benign chemical processes, with many new technologi...

Methyl 3-phenylpropanoate (1), after hydrazination into 3-phenylpropanehydrazide (2), was converted into N-arylidene-3-phenylpropane hydrazides (3a-e), which on cyclization with thioglycolic acid yielded N-(4-oxo-2-arylthiazolidin-3-yl)-3-phenylpropanamides (4a-e). All the proposed structures of newly synthesized compounds were in full agreement with the spectral data. Due to para substitution,...