ChemicalBook CAS DataBase List METHYLPHENYLDIACETOXYSILANE

METHYLPHENYLDIACETOXYSILANE synthesis

6synthesis methods

Product Name:METHYLPHENYLDIACETOXYSILANE
CAS Number:17998-91-3
Molecular formula:C11H14O4Si
Molecular Weight:238.31

3027-21-2 Synthesis

3027-21-2
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108-24-7
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17998-91-3
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Yield:17998-91-3 81%

Reaction Conditions:

with CBV₇₈₀ at 110; for 0.0833333 h;Sealed tube;Microwave irradiation;

Steps:

89 Example 89

10188] A mixture of 3.3 mmol of methyldi(methoxy) (phenyl)silane (Id), 13.2 mmol of acetic anhydride (IIAa) and 10 mg of CBV78O (manufactured by Zeolyst International) was introduced into a reaction tube. The reaction tube was then sealed, followed by stirring at 110° C. for five minutes using a microwave irradiation apparatus (Initiator; manufactured by Biotage AB). The post-treatment and the distillation were carried out in the same manner as inExample 86, to obtain 2.67 mmol (yield: 81%) of di(acetoxy)methyl(phenyl)silane (IIIAi-2).10189] The physical property values and the spectral data of the resulting compound (IIIAi-2) were as follows.j0190] Boiling point: from 95 to 105° C./0.9 mmHg (distillation temperature in short path distillation)10191] IR (liquid film): 1736, 1431, 1371, 1237, 1125, 1018, 940, 801, 741, 698, 597, 474, 432 cm’10192] ‘H-NMR (CDC13): ? 0.82 (s, 3H, SiCH3), 2.14 (s, 6H, CH3CO), 7.39-7.50 and 7.70-7.73 (each m, 5H, C6H5)10193] ‘3C-NMR (CDC13): ? -3.0, 22.6, 128.0, 130.9,131.3, 133.9, 170.610194] 29Si-NMR (CDC13): ? -11.7

References:

US2018/44359,2018,A1 Location in patent:Paragraph 0188; 0189; 0190; 0191; 0192; 0193; 0194

149-74-6 Synthesis