A convenient oxidative sulfenylation method for the formation of various sulfenyl amides has been reported. Arenesulfonyl hydrazine as a sulfur source in the presence of a manganese salt can activate the sp(3) C-H bond of N-methyl amides through a free-radical pathway using di-tert-butyl peroxide (DTBP).

Iron(II) and iron(III) complexes of 3,5-di-tert-butyl-o-benzoquinonemonooxime were synthesized and characterized by spectroscopic and electrochemical studies. Their ability to cleave DNA has been investigated under aerobic conditions at room temperature and in the presence and absence of H(2) O(2). The plasmid DNA pBR322 was effectively cleaved by these complexes in a concentration dependant ma...

Nitration of 2,7-di-tert-butyl-naphthalene 1,8-disulfide with fuming nitric acid in 1:3 molar ratio gives the title compound, C(14)H(11)N(3)O(6)S(2). A tape motif is formed by weak head-to-tail inter-actions (3.131 Å) between S and NO(2) O atoms of a symmetry-related mol-ecule.

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.

An FeCl2-promoted carbomethylation of arylacrylamides by di-tert-butyl peroxide (DTBP) is achieved, leading to 3-ethyl-3-substituted indolin-2-one in high yield. The reaction tolerates a series of functional groups, such as cyano, nitro, ethyloxy carbonyl, bromo, chloro, and trifluoromethyl groups. The radical methylation and arylation of the alkenyl group are involved in this reaction.

The title compound, C(22)H(31)NO, has been synthesized from 4-bromo-methyl-2,6-di-tert-butyl-phenol and N-methyl-aniline. There are two independent mol-ecules in the asymmetric unit. The aniline ring in each of the independent mol-ecules was found to be disordered, with site occupation factors 0.621 (10)/0.379 (10) and 0.605 (10)/0.395 (10).

In a new type of reactivity for sodium TMP-zincate [(TMEDA)NaZn((t)Bu)(2)(TMP)] (1), transamination reactions with the amines diisopropylamine, DA(H), hexamethyldisilazane, HMDS(H) and chiral (R)-N-benzyl-alpha-methylbenzylamine have produced new sodium amido-di-tert-butyl zincates (all structurally characterised) with concomitant loss of TMP(H).

The preparation of triazamacrocyclic hydroxypyridinonate (HOPO-TACN) derivatives as potential chelators for metals in biomedical applications was reported. The synthesis is based on a convergent synthetic approach, in which the key intermediate di-tert-butyl-2,2'-(1,4,7-triazonane-1,4-diyl) diacetate was coupled with a hydroxypyridinonate pendant arm. The method is suitable for rapid syntheses ...