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Chemical Structure| 96693-05-9 Chemical Structure| 96693-05-9

Structure of 96693-05-9

Chemical Structure| 96693-05-9

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Product Details of [ 96693-05-9 ]

CAS No. :96693-05-9
Formula : C14H21BrO
M.W : 285.22
SMILES Code : CCCCCCCCOC1=CC=C(Br)C=C1
MDL No. :MFCD00043445

Safety of [ 96693-05-9 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H315-H319-H335
Precautionary Statements:P261-P264-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P362-P403+P233-P501

Application In Synthesis of [ 96693-05-9 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 96693-05-9 ]

[ 96693-05-9 ] Synthesis Path-Downstream   1~5

  • 2
  • [ 5419-55-6 ]
  • [ 96693-05-9 ]
  • [ 121554-09-4 ]
YieldReaction ConditionsOperation in experiment
With magnesium; In tetrahydrofuran; 2.40 g (99.0 mmol) of magnesium and 25.56 g (89.6 mmol) of 4-octyloxybromobenzene in 250 ml of tetrahydrofuran are used to prepare, at 60 C. for 3 hours, the solution of the Grignard compound, which is added dropwise to a solution, cooled to -70 C., of 18.62 g (99.00 mmol) of triisopropyl borate in 100 ml of tetrahydrofuran, and the mixture is stirred overnight. 130 ml of 10% strength hydrochloric acid are subsequently added dropwise, the mixture is stirred at room temperature for 1 hour and partitioned between sodium chloride solution and ether, and the organic phase is washed with sodium chloride solution, dried over sodium sulfate and evaporated, giving 21.26 g of 4-octyloxybenzeneboronic acid. STR14
With magnesium; In tetrahydrofuran; A solution of the Grignard compound of 2.40 g (99.0 mmol) of magnesium and 25.56 g (89.6 mmol) of 4-octyloxybromobenzene in 250 ml of tetrahydrofuran is prepared at 60 C. for 3 hours and is then added dropwise to a solution, cooled to -70 C., of 18.62 g (99.00 mmol) of triisopropyl borate in 100 ml of tetrahydrofuran, and the mixture is stirred overnight. 130 ml of 10% strength hydrochloric acid are subsequently added dropwise, and the mixture is stirred at room temperature for I hour and partitioned between sodium chloride solution and ether, and the organic phase is washed with sodium chloride solution, dried over sodium sulfate and evaporated, giving 21.26 g of 4-octyloxybenzeneboronic acid. STR15 m.p.: 72-73 C.
  • 3
  • [ 29786-93-4 ]
  • [ 121-43-7 ]
  • [ 96693-05-9 ]
  • [ 121554-09-4 ]
YieldReaction ConditionsOperation in experiment
With hydrogenchloride; In tetrahydrofuran; hexane; 4-Octyloxyphenylboronic acid (33). n-Butyllithium (23 ml, 2.5M in hexane, 0.058 mol) was added dropwise to a stirred, cooled (-78 C.) solution of compound 26 (15.00 g, 0.053 mol) in dry THF (168 ml) under dry nitrogen. The reaction mixture was maintained under these conditions for 2.5 h and then a solution of trimethyl borate (10.98 g, 0.106 mol) in dry THF (50 ml) was added dropwise at -78 C. The reaction mixture was allowed to warm to room temperature overnight and then stirred for 1 h with 10% hydrochloric acid (120 ml). The product was extracted into ether (twice), and the combined ethereal extracts were washed with water and dried (MgSO4). The solvent was removed in vacuo to yield an off white solid. Crude yield 11.56 g (88%); 1 H NMR (CDCl3) d 0.90 (3H, t), 1.40 (10H, m), 1.80 (2H, quint), 4.00 (2H, t), 7.00 (2H, m), 8.10 (2H, m), no obvious OH absorption; IR (KCl) vmax 3100-3400, 2920, 2860, 1600, 1565, 1510, 1460, 1410, 1350, 1305, 1290, 1245, 1170, 1115, 1070, 1030, 1010 cm-1; MS m/z 248 (M+), 222, 186, 110, 94, 81, 71, 65.
  • 4
  • [ 121-43-7 ]
  • [ 96693-05-9 ]
  • [ 121554-09-4 ]
YieldReaction ConditionsOperation in experiment
With n-butyllithium; In tetrahydrofuran; hexane; at -78℃; General procedure: The synthesis of pyridine-based calamitic esters 3a-e is given in Scheme 1. Firstly, 4-Bromophenol was alkylated with the corresponding n-alkyl bromide to give 4-alkoxybromobenzene 1a-e[29-32]. 3,7-Dimethyloctyl bromide in racemic and chiral form were prepared from commercially available 3,7-Dimethyl-1-octanol and (S)-(-)-b-citronellol. As described previously [33], (S)-(-)-b-citronellol was firstly reduced by catalytic hydrogenation (H2,Pd/C in MeOH) to obtain (S)-3,7-dimethyl-1-octanol. Then, both alcohols reacted with. conc. aqu. HBr/conc. H2SO4 using tetrabutylammoniumhydrogensulfate (TBAHS) as catalyst to obtain the corresponding 3,7-Dimethyloctyl bromides. Compounds 1a-e were subjected to halogen-lithium exchange reaction by using n-butyllithiumin 2.5M hexane solution, followed by the treatment with B(OCH3)3 and then acidic hydrolysis to obtain 4-alkoxybenzeneboronic acids 2a-e [29,31,34,35]. In the final step,compounds 2a-e reacted with commercially available Methyl 5-bromopyridine-2-carboxylate in 1,2-dimetoxyethane by using Pd(PPh3)4 as catalyst and saturated NaHCO3 solution to yield the target compounds 3a-e.
  • 5
  • [ 25796-77-4 ]
  • [ 96693-05-9 ]
  • 4-(4-(octyloxy)phenyl)-4H-cyclopenta[1,2-B:5,4-B']dithiophen-4-ol [ No CAS ]
 

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