C-O Bond Formation, C-C Bond Formation > Oxygen-containing molecules >
Synthesis of 1,3-diols
Name Reactions
Recent Literature
C-H functionalization of benzyl silyl ethers by means of rhodium-catalyzed
insertions of aryldiazoacetates can be achieved in a highly
diastereoselective and enantioselective manner by judicious choice of chiral
catalyst or auxiliary. The use of (S)-lactate as a chiral auxiliary
resulted in C-H functionalization with moderate diastereoselectivity and
enantioselectivity. The best results were achieved using Hashimoto's Rh2((S)-PTTL)4
catalyst.
H. M. L. Davies, S. J. Hedley, B. R. Bohall, J. Org. Chem.,
2005,
70, 10737-10742.
A catalytic, direct asymmetric cross-aldol reaction of two different
aldehydes in the presence of water is catalyzed by a novel combined
proline-surfactant organocatalyst. Neither an organic cosolvent nor
additional acid is necessary.
Y. Hayashi, S. Aratake, T. Okano, J. Takahashi, T. Sumiya, M. Shoji,
Angew. Chem. Int. Ed., 2006,
45, 5527-5529.
Direct Catalytic Asymmetric Aldol-Tishchenko Reaction
V. Gnanadesikan, Y. Horiuchi, T. Ohshima, M. Shibasaki, J. Am. Chem. Soc.,
2004,
126, 7782-7783.
Ketones, dienes, and B2(pin)2 undergo a stereoselective
multicomponent coupling reaction in the presence of catalytic amounts of Ni(cod)2
and P(t-Bu)3. A subsequent oxidation furnishes 1,3-diols as
the major reaction product.
H. Y. Cho, Z. Yu, J. P. Morken, Org. Lett., 2011,
13, 5267-5269.
Cu-catalyzed highly regio- and stereoselective 1,4-protoboration of
dienylboronates provides unsymmetrical 1,4-bifunctional allylboron reagents. A
subsequent chemoselective allylboration with aldehydes followed by oxidative
workup give diol products with high diastereoselectivity.
S. Gao, M. Wang, M. Chen, Org. Lett.,
2018, 20, 7921-7925.
A copper(I)-catalyzed asymmetric borylative propargylation of simple ketones
offers broad substrate scope, good tolerance of functional groups, high
diastereo- and enantioselectivities, and reaction robustness. The borylative
product can also serve as a cross-coupling partner in Pd-catalyzed
Suzuki-Miyaura reactions.
X.-C. Gan, L. Yin, Org. Lett., 2019, 21,
931-936.