1018-20-8Relevant articles and documents
Silyl cation mediated conversion of CO2 into benzoic acid, formic acid, and methanol
Schaefer, Andre,Saak, Wolfgang,Haase, Detlev,Mueller, Thomas
, p. 2981 - 2984 (2012)
As you like it: The choice of solvents and substituents at the silicon atom determine what product is formed from carbon dioxide after electrophilic activation by silyl cations (see scheme). Benzoic acid as well as the C-1 building blocks formic acid and methanol are on the product tableau. Copyright
An efficient Pd-catalyzed route to silyl esters
Chauhan, Moni,Chauhan, Bhanu P. S.,Boudjouk, Philip
, p. 1027 - 1029 (2000)
A one-step, highly selective catalytic route to silyl esters is reported. Commercially available silanes with Si-H functionality were converted to silyl or siloxy esters in the presence of Pd(OAc)2 under mild reaction conditions. This protocol was found to be equally applicable for the modification of multiple silicon centers in one framework and lead to the corresponding polysilyl esters in high yields. A comparison of catalytic efficiency of Pd(OAc)2 versus Pd on carbon was also undertaken.
Ring-opening iodo- and bromosilation of lactones for the formation of silyl haloalkanoates
Iwata, Arihiro,Ohshita, Joji,Tang, Heqing,Kunai, Atsutaka,Yamamoto, Yasushi,Matui, Chinami
, p. 3927 - 3929 (2002)
Ring-opening halosilation of lactones with two types of reagents, Et3SiH/MeI(PdCl2) (1a) and Et3SiH/AllylBr(PdCl2) (1b), was studied. Cyclic esters such as γ-butyrolactones, δ-valerolactone, and 6-hexanolide reacted with 1 equiv of 1a,b to give triethylsilyl ω-iodo- and ω-bromoalkanoates in good yields. Reaction of an acyclic ester, methyl benzoate, with 1a afforded triethylsilyl benzoate. O-Silyl-protected amino acids could be obtained by amination of the halosilation products, triethylsilyl ω-bromoalkanoates.
Radical mono- And dideoxygenations with the triethylsilane + benzoyl peroxide system
Barton, Derek H. R.,Jang, Doo Ok,Jaszberenyi, Joseph Cs
, p. 7187 - 7190 (1991)
Thionocarbonates and xanthates of primary and secondary alcohols, as well as dixanthates of vicdiols can easily be deoxygenated to the corresponding hydrocarbons or olefins with triethylsilane and benzoyl peroxide in high-yielding radical reactions.
Silylation of O-H bonds by catalytic dehydrogenative and decarboxylative coupling of alcohols with silyl formates
Chauvier, Clément,Godou, Timothé,Cantat, Thibault
, p. 11697 - 11700 (2017/11/03)
The silylation of O-H bonds is a useful methodology in organic synthesis and materials science. While this transformation is commonly achieved by reacting alcohols with reactive chlorosilanes or hydrosilanes, we show herein for the first time that silylformates HCO2SiR3 are efficient silylating agents for alcohols, in the presence of a ruthenium molecular catalyst.
METHODS AND COMPOUNDS FOR PHOTO LEWIS ACID GENERATION AND USES THEREOF
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Page/Page column 37; 38, (2013/10/21)
There are disclosed masked Lewis acids into compounds in which the Lewis acid can be released by exposure of the compound to light, especially ultraviolet light. These compounds can be represented by the following formula (I): ([(AEX(3-n))(n+1)Yn](n+1)-)m(Qm+)(n+1) (I). wherein briefly, E represents boron or aluminium, X is an aryl group and Y is -Ar'EAX,. These compounds are used as catalyst for hydrosilylation reaction, crosslinking of polymers, or ester deprotection reactions as photo Lewis acid generator (PhLAG).
