Anomeric Oxygen to Carbon Rearrangements of Alkynyl Tributylstannane Derivatives of Lactols
作者:Marianne F. Buffet、Darren J. Dixon、Steven V. Ley、Edward W. Tate
DOI:10.1055/s-1998-1866
日期:1998.10
Treatment of alkynyl tributylstannane tetrahydropyranyl and tetrahydrofuranyl ether derivatives with boron trifluoride etherate effects an efficient anomeric oxygen to carbon rearrangement leading to the corresponding carbon-linked alkynol products.
Anomeric oxygen to carbon rearrangements of alkynyl tributylstannane derivatives of furanyl (γ)- and pyranyl (δ)-lactols
作者:Marianne F. Buffet、Darren J. Dixon、Steven V. Ley、Dominic J. Reynolds、R. Ian Storer
DOI:10.1039/b316858a
日期:——
Tetrahydropyran and tetrahydrofuran containing natural products, drugs and agrochemicals often possess carbonâcarbon bonds adjacent to the heteroatom. Consequently, new methods for the construction of anomeric carbonâcarbon bonds are of considerable importance. We have devised a new strategy to access these systems that requires the treatment of O-glycoside alkynyl tributylstannane derivatives of furanyl and pyranyl lactols with Lewis acid to effect oxygen to carbon rearrangements. This leads to the formation of the corresponding carbon linked alkynol products that can be further manipulated to produce key structural motifs and building blocks for the assembly of complex molecules.