Enantioselective allylation of aldehydes with chiral allyl organolanthanide reagents was written by Qian, Chang-Tao;Huang, Tai-Sheng. And the article was included in Chinese Journal of Chemistry in 1998.Formula: C31H30O4 This article mentions the following:
The first example of enantioselective allylation of aldehydes with chiral allyl organolanthanide reagents has been achieved in high chem. yield and moderate optical purity (up to 54% e.e.). E.g., allylation of PhCHO with BrMgCH2CH:CH2 in presence of CeCl3 and (+)-α,α,α’,α’-tetrakis(o-methoxyphenyl)dioxolane-4,5-dimethanol gave 71% (R)-1-phenyl-3-buten-1-ol with 54% e.e. In the experiment, the researchers used many compounds, for example, ((4S,5S)-2,2-dimethyl-1,3-dioxolane-4,5-diyl)bis(diphenylmethanol) (cas: 93379-49-8Formula: C31H30O4).
((4S,5S)-2,2-dimethyl-1,3-dioxolane-4,5-diyl)bis(diphenylmethanol) (cas: 93379-49-8) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. 1,3-Benzodioxole can be synthesized from catechol with disubstituted halomethanes.Formula: C31H30O4
Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem