63600-35-1Relevant articles and documents
HFIP Solvent Enables Alcohols to Act as Alkylating Agents in Stereoselective Heterocyclization
Zhu, Yuxiang,Colomer, Ignacio,Thompson, Amber L.,Donohoe, Timothy J.
, p. 6489 - 6493 (2019/05/06)
A new method for the stereoselective synthesis of highly functionalized oxygen heterocycles using allyl or benzyl alcohols as alkylating agents is presented. The process is efficient and atom economic, generating water as the only stoichiometric byproduct. Substoichiometric amounts of Ti(OiPr)4 in HFIP solvent are key to this reactivity, and the method tolerates a broad substitution pattern on both the alcohol initiator and homoallylic alcohol substrate. Preliminary mechanistic studies reveal in situ formation of a titanium complex with HFIP which may initiate the cyclization reaction. Further stereoselective functionalization of the products allows access to a diverse range of interesting heterocyclic structures.
Saccharinsulfonic acid: An efficient and recyclable catalyst for acetylation of alcohols, phenols, and amines
Shirini, Farhad,Zolfigol, Mohammad Ali,Abedini, Masoumeh
experimental part, p. 1495 - 1498 (2010/06/19)
Saccharinsulfonic acid is an efficient catalyst of the protection of alcohols, phenols, and amines with acetic anhydride. All reactions were performed under mild and completely heterogeneous reaction conditions. with excellent yields.
Samarium trifluoromethanesulfonate: An efficient moisture tolerant acylation catalyst under solvent-free condition
Roy, Bimalendu,Dasgupta, Somnath,Kumar Rajput, Vishal,Mukhopadhyay, Balaram
, p. 1 - 9 (2008/09/21)
Samarium trifluoromethanesulfonate catalyzed the acylation of phenols, alcohols, thiols, free reducing sugars, and glycosides in excellent yields at ambient temperature under solvent-free condition using stoichiometric amounts of various anhydrides. (Chemical Equation Presented). Copyright Taylor & Francis Group, LLC.