1048993-32-3Relevant academic research and scientific papers
A highly efficient access to spiroketals, mono-unsaturated spiroketals, and furans: Hg(II)-catalyzed cyclization of alkyne diols and triols
Ravindar, Kontham,Sridhar Reddy, Maddi,Deslongchamps, Pierre
, p. 3178 - 3181 (2011/08/06)
Hg(II) salts are identified as highly efficient catalysts for the versatile construction of spiroketals from alkyne diols in aqueous conditions. Monounsaturated spiroketals and furans were accessed with equal ease when propargylic triols (or propargylic d
Highly efficient catalytic routes to spiroketal motifs
Selvaratnam, Selvasothi,Ho, Joanne H.H.,Huleatt, Paul B.,Messerle, Barbara A.,Chai, Christina L.L.
scheme or table, p. 1125 - 1127 (2009/05/27)
The versatile and efficient synthesis of a variety of spiroketal motifs via the double intramolecular hydroalkoxylation of aliphatic and aromatic alkyne diols was achieved using simple and readily accessible Ir(I) and Rh(I) cyclooctadiene complexes as cat
Synthesis of spiroacetals using functionalised titanium carbenoids
Main, Calver A.,Rahman, Shahzad S.,Hartley, Richard C.
, p. 4771 - 4774 (2008/12/21)
Alkylidenation of lactones with functionalised titanium carbenoid reagents (Schrock carbenes) followed by acid-induced cyclisation of the resulting enol ethers constitutes a new method for the preparation of [4.4], [4.5] and [5.5] spiroacetals (1,6-dioxaspiro[4.4]nonanes, 1,6-dioxaspiro[4.5]decanes and 1,7-dioxaspiro[5.5]undecanes, respectively, sometimes termed 5,5-, 5,6- and 6,6-spiroketals). The titanium carbenoids are easily generated from readily available thioacetals.
