Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Silylations trifluoromethanesulfonate

Pentyl methanesulfonate, 2550 Prop-2-enyl trifluoromethanesulfonate, 1461 Silyl trifluoromethanesulfonate, 0444 Trifluoroacetyl trifluoromethanesulfonate, 1057... [Pg.378]

Table 1 summarizes the results of the reactions of ynoates (2a-c) with a silicon enolate (silyl ketene acetal) and a lithium enolate of methyl propionate (Eq. 1). Except for the reaction of 2c, Fe-Mont catalyzed exclusive 1,2-addition of silyl ketene acetal to 2a and 2b to give an adduct of 3 in high yields. However, even trimethyl silyl trifluoromethanesulfonate (TMSOTf), a generally applied homogeneous strong acid, failed to effect the addition reaction. [Pg.372]

Silver trisulfurpentanitridate, 0024 Silylidyne, see Silicon monohydride, 4445 Silyl trifluoromethanesulfonate, 0443 Sodio(bromonitropropane), 1149b... [Pg.2135]

Silyl trifluoromethanesulfonate, 0443 Trifluoroacetyl trifluoromethanesulfonate, 1054 3-Trimethylsilylprop-2-enyl trifluoromethanesulfonate, 2843... [Pg.2595]

ALLYLIC ALCOHOLS Aluminum iso-propoxide. Oxygen, singlet. Tiimcthyl-silyl trifluoromethanesulfonate. [Pg.271]

TL7475], in the presence of boron trifluoride diethyl etherate or trimethyl-silyl trifluoromethanesulfonate gives the corresponding 2-oxoalkyl-, 3-oxo-alkyl-, alkoxycarbonylmethyl- and allyltriarylbismuthonium salts, respectively. [Pg.287]

Related Reagents. Di-t-butyldichlorosilane Di-t-butyhnethyl-silyl Trifluoromethanesulfonate Di-t-butylsilyl Bis(trifluoro-methanesulfonate) Dichlorodimethylsilane Dichlorodiisopropy-Isilane. [Pg.247]

Alternate Names TDSOTf TDS triflate TDMSOTf dimethylthexylsilyl triflate thexyldimethylsilyl triflate dimethyl) 1,1,2-trimethylpropyl)silyl trifluoromethanesulfonate dimethyl (1,1,2-trimethylpropyl)silyl-1,1,1-trifluoromethanesulfonate dimethyl-(2,3-dimethyl-2-butyl)silyl trifluoromethanesulfonate thexyldimethylsilyl trifluoromethanesulfonate trifluoro-methanesulfonic acid thexyldimethylsilyl ester. [Pg.265]

Silyl trifluoromethanesulfonate behaves as a Lewis acid catalyst. This behavior has been confirmed in the reaction of various ketones, esters, amides, and thioesters with acetals in the presence of an amine base (Equation (8.6)). Acetals derived from aryl, unsaturated, and aliphatic aldehydes are all effective substrates for these catalysts [21]. [Pg.224]

Related Reagents. f-Butyldimethylsilyl Trifluoromethane-sulfonate Chlorotrimethylsilane lodotrimethylsilane Triethyl-silyl Trifluoromethanesulfonate. [Pg.435]

See other pages where Silylations trifluoromethanesulfonate is mentioned: [Pg.126]    [Pg.179]    [Pg.35]    [Pg.166]    [Pg.397]    [Pg.584]    [Pg.197]    [Pg.172]    [Pg.21]    [Pg.659]    [Pg.579]    [Pg.20]    [Pg.2054]    [Pg.2501]    [Pg.876]    [Pg.494]   
See also in sourсe #XX -- [ Pg.572 ]



SEARCH



© 2024 chempedia.info