Month: September 2022

A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. 1575-37-7, formula is C6H7BrN2, Name is 4-Bromobenzene-1,2-diamine. Organobromine compounds have fallen under increased scrutiny for their environmental impact., Computed Properties of 1575-37-7.

Dusold, Carolin;Sharapa, Dmitry I.;Hampel, Frank;Hirsch, Andreas research published 《 π-Extended Diaza[7]helicenes by Hybridization of Naphthalene Diimides and Hexa-peri-hexabenzocoronenes》, the research content is summarized as follows. The synthesis of an unprecedented, π-extended hexabenzocorene (HBC)-based diaza[7]helicene I is presented. The target compound I was synthesized by an ortho-fusion of two naphthalene diimide (NDI) units to a HBC-skeleton. A combination of Diels-Alder and Scholl-type oxidation reactions involving a sym. di-NDI-tolane precursor II was crucial for the very selective formation of the helical superstructure via a hexaphenyl-benzene (HPB) derivative III. The formation of the diaza[7]helicene moiety I in the final Scholl oxidation is favored, affording the sym. π-extended helicene as the major product as a pair of enantiomers. The separation of the enantiomers was successfully accomplished by HPLC involving a chiral stationary phase. The absolute configuration of the enantiomers was assigned by comparison of CD spectra with quantum mech. calculations

Computed Properties of 1575-37-7, 4-Bromo-1,2-diaminobenzene can be obtained from 1,2-diaminobenzene via acetylation followed by bromination and alkaline hydrolysis.
4-Bromobenzene-1,2-diamine, also known as 4-Bromobenzene-1,2-diamine, is a useful research compound. Its molecular formula is C6H7BrN2 and its molecular weight is 187.04 g/mol. The purity is usually 95%.
4-Bromo-1,2-diaminobenzene is a dye that is used in diagnostic
procedures to detect the presence of amide groups. 4-Bromo-1,2-diaminobenzene can be used as an inhibitor for cationic polymerization reactions. It also has tuberculostatic activity and inhibits the growth of Mycobacterium tuberculosis. This compound reacts with aniline to form a benzimidazole derivative that contains a reactive amine group. The reaction between this amine group and different electrophiles generates benzimidazole compounds with different properties that are useful in nucleophilic attack reactions. The reaction between 4-bromo-1,2-diaminobenzene and methyl ethyl sulfide produces a luminescent probe that can be used to detect hydrogen bonds., 1575-37-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 19111-87-6, formula is C18H11Br, Name is 2-Bromotriphenylene. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Recommanded Product: 2-Bromotriphenylene.

Carmichael, Ian;Hug, Gordon L. research published 《 Triplet-triplet absorption spectra of organic molecules in condensed phases》, the research content is summarized as follows. A review in which a compilation is given of spectral parameters associated with triplet-triplet absorption of organic mols. in condensed media. Other data, for example, lifetimes, energies and energy transfer rates, relevant to the triplet states of these mols., are included by way of comments, but have not been subjected to a similar scrutiny. An introduction is given to triplet state processes in solution and solids, developing the conceptual background and offering an historical perspective on the detection and measurement of triplet state absorption. Techniques employed to populate the triplet state are reviewed and the various approaches to the estimation of the extinction coefficient of triplet-triplet absorption are discussed. A statistical anal. of the available data is presented and recommendations for a hierarchical choice of extinction coefficients are made. Data collection is expected to be complete through the end of 1984.

Recommanded Product: 2-Bromotriphenylene, 2-Bromotriphenylene is a useful research compound. Its molecular formula is C18H11Br and its molecular weight is 307.2 g/mol. The purity is usually 95%.
2-Bromotriphenylene is a brominating agent that has the ability to react with sodium carbonate and emit light. The luminescence of 2-bromotriphenylene can be used as an indicator of the degree of dilution, or how much water is present in a solution. It also emits light when it reacts with chloride ions in a reaction solution. 2-Bromotriphenylene can be used as a polymer matrix to form polymeric films, which are then used as catalysts for organic reactions. The luminescence properties of 2-bromotriphenylene make it suitable for use in functional theory experiments. This chemical compound is relatively low cost, and has been shown to have high yield in catalysis., 19111-87-6.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary