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[ CAS No. 696-62-8 ] {[proInfo.proName]}

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Chemical Structure| 696-62-8
Chemical Structure| 696-62-8
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Product Citations

Product Citations

Sokolnicki, Tomasz ; Stefanowska-K?tna, Kinga ; Czapik, Agnieszka , et al. DOI:

Abstract: A novel approach towards synthesizing new metalloid-substituted olefins has been accomplished by transforming (E)-1,2-diboryl-1-silylethenes through two consecutive Suzuki–Miyaura coupling reactions. This methodology provides an effective and selective way to obtain new, structurally different products, such as (E)-1-silyl-1-boryl-2-arylethens, (1E,3E)-1-silyl-1-boryl-2-alkenylethens, and (E)-1-silyl-1-aryl1-2-aryl2ethenes, which are difficult to synthesize through hydrometallation reactions and related processes. Due to the presence of reactive motifs (silyl group, Bpin moiety, and Csp2-H bond) in the structure of the final products, these molecules might be considered powerful building blocks in modern chemistry. With the aid of demetallation and cross-coupling reactions, they might be further functionalized into several invaluable chemicals, i.e., tetrasubstituted olefins (anti-cancer drugs, fluorescence materials), compounds with high π-conjugation, and polymers.

Keywords: (E)-1-silyl-1,2-diboryl-ethenes ; aryl iodides ; (E)-(2-iodovinyl)benzenes ; Suzuki–Miyaura cross-coupling ; substituted olefins ; building blocks

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Product Details of [ 696-62-8 ]

CAS No. :696-62-8 MDL No. :MFCD00001056
Formula : C7H7IO Boiling Point : -
Linear Structure Formula :CH3O(C6H4I) InChI Key :SYSZENVIJHPFNL-UHFFFAOYSA-N
M.W : 234.03 Pubchem ID :69676
Synonyms :

Calculated chemistry of [ 696-62-8 ]      Expand+

Physicochemical Properties

Num. heavy atoms : 9
Num. arom. heavy atoms : 6
Fraction Csp3 : 0.14
Num. rotatable bonds : 1
Num. H-bond acceptors : 1.0
Num. H-bond donors : 0.0
Molar Refractivity : 45.65
TPSA : 9.23 ?2

Pharmacokinetics

GI absorption : High
BBB permeant : Yes
P-gp substrate : No
CYP1A2 inhibitor : Yes
CYP2C19 inhibitor : No
CYP2C9 inhibitor : No
CYP2D6 inhibitor : No
CYP3A4 inhibitor : No
Log Kp (skin permeation) : -5.63 cm/s

Lipophilicity

Log Po/w (iLOGP) : 2.26
Log Po/w (XLOGP3) : 2.95
Log Po/w (WLOGP) : 2.3
Log Po/w (MLOGP) : 2.72
Log Po/w (SILICOS-IT) : 2.81
Consensus Log Po/w : 2.61

Druglikeness

Lipinski : 0.0
Ghose : None
Veber : 0.0
Egan : 0.0
Muegge : 1.0
Bioavailability Score : 0.55

Water Solubility

Log S (ESOL) : -3.58
Solubility : 0.062 mg/ml ; 0.000265 mol/l
Class : Soluble
Log S (Ali) : -2.81
Solubility : 0.366 mg/ml ; 0.00156 mol/l
Class : Soluble
Log S (SILICOS-IT) : -3.48
Solubility : 0.0771 mg/ml ; 0.00033 mol/l
Class : Soluble

Medicinal Chemistry

PAINS : 0.0 alert
Brenk : 1.0 alert
Leadlikeness : 1.0
Synthetic accessibility : 2.0

Safety of [ 696-62-8 ]

Signal Word:Warning Class:N/A
Precautionary Statements:P261-P305+P351+P338 UN#:N/A
Hazard Statements:H315-H319-H335 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 696-62-8 ]

* 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.

  • Upstream synthesis route of [ 696-62-8 ]
  • Downstream synthetic route of [ 696-62-8 ]

[ 696-62-8 ] Synthesis Path-Upstream   1~1

  • 1
  • [ 547-63-7 ]
  • [ 696-62-8 ]
  • [ 6274-50-6 ]
YieldReaction ConditionsOperation in experiment
80%
Stage #1: With 2,2,6,6-tetramethylpiperidinyl-lithium In toluene at 20℃; for 0.25 h; Glovebox
Stage #2: With palladium(l) tri-tert-butylphosphine iodide dimer In toluene at 20℃; Glovebox
General procedure: Inside the glovebox, lithium 2,2,6,6-tetramethylpiperidide (LiTMP, 70.7 mg, 0.48 mmol, 1.2 eq.) was dissolved in toluene (1.5 mL) and carbonyl compound (3, 0.48 mmol, 1.2 eq.) was added. After 15 min of stirring at ambient temperature a solution of Pd(I) iodo dimer (2, 3.5 mg, 0.004 mmol, 1 molpercent for aryl iodides; 17.4 mg, 0.02 mmol, 5 molpercent for aryl bromides) and aryl halide (4, X = I or Br, 0.4 mmol, 1.0 eq.) in toluene (0.5 mL) was added. After 4-18 h of further stirring at ambient temperature (reaction progress was monitored by GCMS), the crude was directly adsorbed onto silica (washing with diethyl ether) and purified by flash column chromatography.
Reference: [1] Synthesis (Germany), 2018, vol. 50, # 22, p. 4471 - 4475
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[ 696-62-8 ]

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