CAS: 35239-30-6; P-Tolyldimethylchlorosilane

上下游产品

Dichlormethyl-P-Tolylsilan 18236-57-2

1,3-二(对甲苯基)-1,1,3,3-四甲基二硅氧烷置于盐酸体系中,用 1,4-二氧六环,苯 用作溶剂,化学反应生成对甲苯二甲基氯硅烷
参考文献:硅氧烷的合成:Xii.用氯化氢裂解硅氧烷
标题:硅氧烷的合成:Xii.用氯化氢裂解硅氧烷
摘要:1 H NMR光谱已用于在二恶烷中通过氯化氢裂解硅氧烷键的动力学研究.裂解显示诱导期,该诱导期与反应过程中形成的水的自催化作用有关.动力学行为可以用速率定律表达,该速率定律包括被二恶烷裂解的速率竞争物.Hcl(k 1)和h 2 O.hcl(k 2).所述ķ ' 1(ķ ' 1  ķ 1 .[hcl]的-4)和ķ ' 2(ķ ' 2  ķ2 .[hcl]-3)值与σ *值相关;从而ρ *是为获得1.4和0.7值ķ ' 1和ķ ' 2分别.我们先前为me 3 Sio基得出的σ *值为0.35,适用于该反应.
Doi:10.1016/0022-328X(88)83083-3

专利信息

专利号:US-7429670-B2
优先权日:2003-08-27
标题 :Synthesis of derivatives of ginkgolide C
发明人：NAKANISHI KOJI; JARACZ STANISLAV; STROMGAARD KRISTIAN
权利人:UNIV COLUMBIA
摘要:The subject invention provides ginkgolide C derivatives compounds having the structure: n n n n n n n n n n wherein R is H or -A-Ar,n where A is an alkyl group; and Ar is an aryl group, which may contain heteroatoms and may be unsubstituted or substituted by one to five substituents each selected from the group consisting of hydrogen, alkoxy, —CH 2 CO 2 R 4 , and —CH 2 CONR 5 R 6 ;n where R 4 is an alkyl group; and R 5 and R 6 are each, independently, hydrogen or a branched or unbranched alkyl group; n n n wherein R 1 is H or —COR 7 ,n where R 7 is alkyl, aryl or amino; n n wherein R 2 is present or absent, and when present is H, —COR 8 or —CO—Z—R 8 ;n where R 8 is alkyl, aryl or amino; and Z is oxygen; n n wherein R 3 is present or absent, and when present is —COR 9 ;n where R 9 is alkyl or aryl; n n wherein only one of R 2 or R 3 is present in the compound; n wherein only two of R, R 1 , R 2 and R 3 are H; and n wherein each of a and b designates a single covalent bond which is present or absent,n where bond a is present when R 3 is absent and bond b is present when R 2 is absent;n nor an optically pure enantiomer of the compound. Additionally, the subject invention provides methods of inhibiting the activity of a glycine receptor using these compounds.

专利号:US-2022355262-A1
优先权日:2019-07-22
标题 :System and method for manufacturing water-based hydrophobic aerogels and aerogel composites
发明人：SACHITHANADAM MAHESH; KHORASGANI SOGHRATI ELMIRA; NATARAJAN GAYATHRI
权利人:KROSSLINKER PTE LTD
摘要:Embodiments of the present invention provide users with a system and method for manufacturing water-based hydrophobic aerogels and aerogel composites. The system and method can be carried out in a manner which is more rapid than typical ways and can be readily scalable. The method of manufacture is useful for producing water based hydrophobic aerogels and aerogel composites on a large scale with good homogeneity and consistency. Advantageously, the method of manufacture also has the benefit of a shorter processing time due to the vacuum homogenizing and mixing processes, the use of microwave assisted vacuum freeze drying for ease of synthesis of water-based hydrophobic aerogels.

专利号:US-2005119336-A1
优先权日:2003-08-27
标 题:Synthesis of derivatives of ginkgolide C