4706-81-4Relevant articles and documents
Cleavage of tert-butyldimethylsilyl ethers by chloride ion
Farras, Jaume,Serra, Carme,Vilarrasa, Jaume
, p. 327 - 330 (2007/10/03)
A general method for the selective cleavage of tert-butyldimethylsilyl ethers in the presence of tert-butyldiphenylsilyl ones has been established using a combination of H2O and a concentrated solution of LiCl in DMF at 90°C. Since no acids, bases, reducing or oxidizing agents are used, the method seems to be very appropiate for the deprotection of TBDMS ethers in the presence of other sensitive functional groups.
A refined method for the removal of the methoxymethyl (MOM) protecting group for carbinols with acidic ion-exchange resin
Seto,Mander
, p. 2823 - 2828 (2007/10/02)
The methoxymethyl protecting group for carbinols is best removed from acid-sensitive substrates by hydrolysis in aqueous methanol using a cationic exchange resin (Dowex-50W).
Rates and Alkyl Group Size in Solvolysis of Alkyl Derivatives
Orlovic, Mirko,Kronja, Olga,Humski, Kresimir,Borcic, Stanko,Polla, Eugenio
, p. 3253 - 3256 (2007/10/02)
The logarithm of solvolysis rate constants in 80percent aqueous ethanol of 1,1-dimethyl-1-alkyl chlorides 1 and 1-phenyl-1-alkyl chlorides 2 decrease monotonically with increasing number of carbon atoms in the alkyl group.The first member of both series deviates from the corresponding correlation lines which have the some slope.In contrast, solvolysis rates in 80percent aqueous ethanol of 1-methyl-1-alkyl tosylates 3 do not depend upon the size of the alkyl group.The results are rationalized in terms of a mechanism that is very similar in reactions of series 1 and 2 but different from that of series 3.