What is TBS in organic chemistry?

Silyl ethers are a group of chemical compounds which contain a silicon atom covalently bonded to an alkoxy group. Common silyl ethers are: trimethylsilyl (TMS), tert-butyldiphenylsilyl (TBDPS), tert-butyldimethylsilyl (TBS/TBDMS) and triisopropylsilyl (TIPS).

What is a TBS group?

The TBS group Structure TBS Group invests in and develops 6 key businesses: Footwear, Handbags, Investment and Asset Management, Logistics, Hospitality and Retail.

How do you get rid of TBS?

Various tert-butyldimethylsilyl ethers are easily removed in excellent yields by treatment with a catalytic amount of N-iodosuccinimide in methanol. This method allows a selective deprotection of TBDMS ethers of alcohols in the presence of TBDMS ethers of phenols. B.

Is TBS a protecting group?

The most popular and commercially available silyl-protective groups are trimethylsilyl (TMS), triethylsilyl (TES), tert-butyldimethylsilyl (TBS), tert-butyldiphenylsilyl (TBDPS), triisopropylsilyl (TIPS) as well as the diol-protective groups DTBS and TIPDS (Figure 1).

How do I Deprotect silyl?

Typical deprotection protocols for the removal of silyl ethers are acidic aqueous THF, or acidic methanol, alkaline aqueous solutions and sources of fluoride ion, most commonly tetra-n-butylammonium fluoride, TBAF, in various solvents.

What is the purpose of a silyl ether?

Silyl ether groups, typically used to protect alcohol functions in organic synthesis, offer good control over the rate and mechanism of their cleavage through judicious choice of silicon substituents.

How do I Deprotect silyl group?

Tetrabutylammonium fluoride in tetrahydrofuran (TBAF/THF) is commonly used for deprotection of silyl ethers. 2*6 However, TBAF can be detrimental to base-sensitive systems,6 and the phase transfer properties of the tetrabutylammonium cation often cause difficulties in the workup and purification of products.

Are silyl ethers good leaving groups?

An alkoxy group is a notoriously poor leaving group. But if you first protonate the ether to form an alkyloxonium ion, you have a much better leaving group. This is why silyl ethers make good protecting groups. They are exceptionally stable in base solution.