A concise route to multigram quantities of the antibacterial diterpene (+)-totarol (1) is reported. (-)-Sclareol (2) was converted to the target compound 1 using either a six- or a seven-step sequence, while only three steps were required to access (+)-totarol ( 1) starting from (+)-manool (9) or (+)-13-epi-manool (10), respectively. A novel one-pot intramolecular aldol condensation/α-alkylation protocol served as the key operation for streamlining the syntheses of 1. ARKAT-USA, Inc.
Rogachev, Victor,Loehl, Thorsten,Markert, Thomas,Metz, Peter
p. 172 - 180
(2013/09/24)
Iodination of Thallium(I) salts of Phenols
The iodination of thallium(I) salts of phenols is examined and the results are compared with those of the selective ortho-iodinating reagent thallium(I) acetate-iodine.
Gambie, Richard C.,Larsen, David S.,Rutledge, Peter S.,Woodgate, Paul D.