84379-34-0

Basic information

• Product Name: 2-(Benzyloxy)-1,3-dibroMo-5-Methylbenzene
• Synonyms: 2-(Benzyloxy)-1,3-dibroMo-5-Methylbenzene;1,3-Dibromo-5-methyl-2-(phenylmethoxy)- benzene;1,3-Dibromo-5-methyl-2-(phenylmethoxy)-\tbenzene
• CAS NO: 84379-34-0
• Molecular Formula: C₁₄H₁₂Br₂O
• Molecular Weight: 356.05248
• Mol File: 84379-34-0.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• Storage Temp.: 2-8°C
• CAS DataBase Reference: 2-(Benzyloxy)-1,3-dibroMo-5-Methylbenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(Benzyloxy)-1,3-dibroMo-5-Methylbenzene(84379-34-0)
• EPA Substance Registry System: 2-(Benzyloxy)-1,3-dibroMo-5-Methylbenzene(84379-34-0)

Safety Data

• Hazardous Substances Data: 84379-34-0(Hazardous Substances Data)

Usage

General Description

2-(Benzyloxy)-1,3-dibromo-5-Methylbenzene is a chemical compound with the molecular formula C14H13Br2O. It is a derivative of benzene with two bromine atoms and a methyl group attached to it. The benzyloxy group consists of a benzene ring with a methoxy group bonded to it. 2-(Benzyloxy)-1,3-dibroMo-5-Methylbenzene is used in organic synthesis as a building block for the preparation of various pharmaceuticals and agrochemicals. It may also be used as a reagent in chemical reactions and as a precursor for the synthesis of other organic compounds. Additionally, it is important to handle this compound with care as it may pose health hazards if not properly handled or stored.

Upstream product

• 2432-14-6 3,5-dibromo-4-hydroxytoluene 
• 100-39-0 benzyl bromide 
• 100-44-7 benzyl chloride 

Downstream Products

• 84379-35-1 1-(phenylmethoxy)-2,6-dicarboxy-4-methylbenzene 
• 84379-23-7 35,37-dioxo-34,38-dimethoxy-33,36-bis(phenylmethoxy)-4,15,26,31-tetramethyl-8,12,18,22-tetraazaheptacyclo<27.3.1.1^2,6.1^8,12.1^13,17.1^18,22.1^24,28>octaconta-1(33),2(34),3,5,13(36),14,16,24(38),25,27,29,31,-dodecaene 
• 620988-42-3 2-bromo-4-methyl-6-(2-hydroxyphenyl) phenol benzyl ether 
• 84379-42-0 1-(phenylmethoxy)-2,6-bis(hexahydro-2-oxopyrimidinyl)-4-methylbenzene 
• 84379-36-2 2,6-bis<3-(3-bromopropyl)ureido>-4-methylbenzene 

Relevant articles and documents

Fourth subgroup metal complex with rigid annular bridging structure and application of fourth subgroup metal complex

The invention belongs to the technical field of olefin polymerization catalysts, and particularly relates to a fourth subgroup metal complex with a rigid annular bridging structure and an application of the fourth subgroup metal complex. The fourth subgroup metal complex provided by the invention has a structure represented by a formula (A) or a formula (B), X is halogen or alkyl; and M is titanium, zirconium or hafnium. On the basis of a non-metallocene catalyst, a bridging structure in catalyst molecules is improved and upgraded, and a brand-new metal complex with excellent catalytic performance and good high-temperature tolerance is designed; when the fourth subgroup metal complex is used as a main catalyst to catalyze olefin polymerization reaction, under the activation action of a small amount of mixed cocatalyst, the fourth subgroup metal complex can efficiently catalyze the copolymerization reaction of ethylene and alpha-olefin to obtain polyolefin with high molecular weight and high comonomer insertion rate.

Host-Guest Complexation. 32. Spherands Composed of Cyclic Urea and Anisyl Units

Five new spherands and three new hemispherands containing cyclic urea units have been designed and synthesized, and their binding properties have been examined.Formally, these macrocycles are composed by attaching to one another the following units: 2,6-disubstituted anisyl, or A; 2,6-disubstituted 4-methylanisyl, or A'; N,N-disubstituted tetrahydro-2-pyrimidinone, or U; 2,6-disubstituted 1-(allyloxy)-4-methylbenzene, or A'a; 2,6-disubstituted 1-(benzyloxy)-4-methylbenzene, or A'b; 2,6-disubstituted 4-methylphenol, or A'h; 1,2-disubstituted benzene, or B; and CH2 groups.Host structures and key intermediates are visualized by line formulas in which adjacent letters indicate bonded units. The macroring acts as a semirigid support structure for convergently arranged carbonyl and methoxy groups.Key ring-closing reactions involve urea NH group substitution of ArCH2Br in (CH2)4O-NaH under high dilution.Treatment of U(A'UH)2 with (BrCH2)2B gave U(A'UCH2)2B (1, 7percent), of A(AUH)2 with (BrCH2)2B gave A(AUCH2)2B (2, 11percent), of A(AUH)2 with (BrCH2)2A' gave A(AUCH2)2A' (3, 32percent) of A'b(A'UH)2 with (BrCH2)2A'a gave A'b(A'UCH2)2A'a (4, 41percent), deallylation of which with Pd-EtOH-TsOH gave A'b(A'UCH2)2A'h (5, 25percent), of U(A'CH2Br)2 with (HU)2A' gave U(A'CH2U)2A' (6, 60percent), and of A'b(A'CH2Br)2 with (HU2)A'b gave A'b(A'CH2U)2A'b (7, 41percent), which was hydrolytically debenzylated to give A'h(A'CH2U)2A'h (43percent), methylation of which produced A'(A'CH2U)2A' (8, 71percent).These compounds were generally purified as their NaBr complexes, which were decomplexed by crystallizing the free host from MeOH-H2O mixtures by MeOH evaporation (a phase-transfer process).Crystal structures of complexes A(AUCH2)2A'*NaBr*H2O (3*NaBr*H2O) and A(AUCH2)2A'*CsClO4*H2O (3*CsClO4*H2O) are discussed.Association constants (Ka) between host and guest to give complexes were determined by extracting picrate salts (guests) from D2O into CDCl3 in the absence and presence of hosts at 25 deg C.The rates of extraction were essentially instantaneous on the human time scale.The free energies for complexation for the seven hosts with picrate salts of Li+, Na+, K+, Rb+, Cs+, NH4+, CH3NH3+, and t-BuNH3+ were determined.These -ΔG0 values (kcal mol-1) ranged from a high of ca. 18.3 (U(A'UCH2)2B (1)) for Li+ to a low 7.2 (U(A'CH2U)2A' (6)) for (CH3)3CNH3+.Interesting structural recognition factors (KaG/KaG') for a host distinguishing between two similar guests (G and G') are as follows: Li+/Na+, U(A'UCH2)2B (1), 30; Na+/Li+, A'b(A'CH2U)2A'b (7), 3400; Na+/K+, A(AUCH2)2B (2), 2300; K+/Na+, A(AUCH2)2A' (3), 3; K+/Rb+, A'b(A'UCH2)2A'a (4), 110; Rb+/Cs+, A'b(A'UCH2)2A'a (4), 25; Cs+/Rb+, U(A'UCH2)2B (1), 2; NH4+/CH3NH3+, A(AUCH2)2A' (3), 9; CH3NH3+/NH4+, U(A'UCH2)2B (1), 1.7; CH3NH3+/t-BuNH3+, A'b(A'UCH2)2A'a (4), 4600; t-BuNH3+/CH3NH3+, U(A'UCH2)2B (1), 6.Correlations between the structures of hosts and guests and their free energies of binding are interpreted interms of the principles of complementarity and of preorganiz...