Fig. 8: Gram-scale reaction and synthetic transformations of the products.
From: Stereoselectivity control in Rh-catalyzed β-OH elimination for chiral allene formation

a Gram-scale reaction. b Copper-catalyzed enantioselective allenation of (R)-3ab with terminal propargylic ethers 5–8. c Synthesis of alkynyl ketone (R)-13 from (R)-3ab. d Reduction of (R)-3ad to alcohol (R)-14 with LiAlH4. e Suzuki coupling reaction of (R)-3ai to (R)-15 with 2b.