|
|
|
|
|
|
|
News Release
|
|
|
Varsal increase MSA salts
(Sn-MSA) production capacity in Tangshan
|
|
Tangshan, Hebei, China - (November 1, 2008)
|
|
Varsal Inc. increased the MSA salts capacity in the
subdivision company: Varsal Chemicals (Tangshan) Co., Ltd. at Tangshan
seaport industrial development zone, Tangshan, Hebei, China. The
Tangshan facility consists of MSA, MSA salts, HPA and other specialty
chemical product lines. With the expansion of the MSA salts production
line, Varsal can produce up to 500 MT/month of Sn-MSA. Furthermore, Varsal can control the
level of impurities such as Pb and Fe to as low as 1 ppb (ng/mL) and as
high as 3%. This expansion
gives Varsal one of the leading producer of MSA and MSA salts.
|
|
|
Varsal establishes new
enterprise in Tianjin: Varsal technology (Tianjin) Co., Ltd.
|
|
Tianjin, China - (January 31, 2006)
|
|
Varsal Inc. registered a new subdivision company at
Tianjin port free trade zone, airport industrial park, Tianjin, China
in September, 2005. The Tianjin facility's primary functions include
duty-free international trading; bonded warehousing; precision
analytical instruments assembly, research and developments; organic
synthesis and biochemical research and development certer; pilot
synthesis facility from gram to ton production.
|
|
|
Varsal Introduces Triflates
and Silylated Derivatives
|
|
Warminster, PA - (January 15, 2003)
|
|
Varsal, the world’s leading producer of methanesulfonic
acid and its derivatives, announces the addition of trifluoromethanesulfonic
acid (triflic acid) and trifluoromethanesulfonic anhydride (triflic
anhydride) to its line of products. Triflates are only available from
limited sources worldwide. Director of Business Development Kimberly
Morgan states, "Varsal has a unique advantage in having both a
very strong position with the triflates as well as with the Grignard
chemistry used to make the silanes."
|
|
Triflates are one of the best leaving groups for organic
synthesis (SN2 reactions), due to the stabilizing effect of the
fluorine atoms on the anion, and can be extremely useful in chiral
synthesis. When combined with silanes, triflates can be very useful for
silylation of unreactive substrates, such as primary and secondary
alcohols.
|
|
Varsal offers several different silylated triflates,
such as tert-butyldimethylsilyl triflate (TBDMS-triflate) to silylate
tertiary and hindered secondary alcohols; and triisopropylsilyl
triflate (TIPS-triflate) which is especially useful due to the steric
screening provided by the three isopropyl substituents. TIPS-triflate
is also very helpful to silylate primary and secondary alcohols.
|
|
|
|
|
|
