Brown, Herbert C. published the artcileChiral synthesis via organoboranes. 13. A highly diastereoselective and enantioselective addition of [(Z)-γ-alkoxyallyl]diisopinocampheylboranes to aldehydes, COA of Formula: C21H37BO, the publication is Journal of the American Chemical Society (1988), 110(5), 1535-8, database is CAplus.
Isomerically pure [(Z)-γ-methoxyallyl]diisopinocampheylboranes, I, prepared from (+)-α-pinene and II, have been prepared from B-methoxydiisopinocampheylborane and lithiated allyl Me ether. These enantiomeric [(Z)-γ-methoxyallyl]diisopinocampheylboranes retain their stereochem. identity under the reaction conditions. They have been successfully condensed with various aldehydes, such as acetaldehyde, propionaldehyde, 2-methylpropionaldehyde, and benzaldehyde in a regioselective and stereoselective manner to yield the corresponding threo-β-methoxyhomoallyl alcs. in â?9% diastereoselectivities and â?5% enantioselectivities. Similarly, [(Z)-γ-[(methoxymethyl)oxy]allyl]diisopinocampheylborane was prepared and was utilized for the preparation of threo-1,2-diol.
Journal of the American Chemical Society published new progress about 99438-28-5. 99438-28-5 belongs to ethers-buliding-blocks, auxiliary class Chiral,Aliphatic cyclic hydrocarbon, name is (+)-B-Methoxydiisopinocampheylborane, and the molecular formula is C21H37BO, COA of Formula: C21H37BO.
Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem