Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 4254-14-2, Name is (R)-Propane-1,2-diol, molecular formula is C3H8O2. In an article, author is Jonker, Sybrand J. T.,once mentioned of 4254-14-2, SDS of cas: 4254-14-2.
Chiral alpha-substituted allylboronic acids were synthesized by asymmetric homologation of alkenylboronic acids using CF3/TMS-diazomethanes in the presence of BINOL catalyst and ethanol. The chiral alpha-substituted allylboronic acids were reacted with aldehydes or oxidized to alcohols in situ with a high degree of chirality transfer. The oxygen-sensitive allylboronic acids can be purified via their isolated diaminonaphthalene (DanH)-protected derivatives. The highly reactive purified allylboronic acids reacted in a self-catalyzed reaction at room temperature with ketones, imines, and indoles to give congested trifluoromethylated homoallylic alcohols/amines with up to three contiguous stereocenters.
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Reference:
Chiral Catalysts,
,Chiral catalysts – SlideShare