Dianion of N-phenyl-2-[(phenylsulfonyl)methyl]propenamide as a versatile reagent for the preparation of α-methylene carbonyl compounds was written by Tanaka, Kazuhiko;Horiuchi, Hiroshi;Yoda, Hidemi. And the article was included in Journal of Organic Chemistry in 1989.COA of Formula: C7H13ClO2 This article mentions the following:
A general synthetic route to α-methylene β-lactams involves the regioselective electrophilic substitution of the dianion generated from PhSO2CH2C(:CH2)CONHPh (I). A convergent synthesis of conocandin N-phenylamide [(3R*,4R*)-II was carried out. Key steps in the synthesis are the stereoselective introduction of the C(9)-C(10) trisubstituted double bond of the amide using the dianion of I and the transformation of the sulfonyl group in the intermediate amide, (E)-9-hydroxy-10-methyl-2-methylene-N-phenyl-3-(phenylsulfonyl)-9-hexadecenamide, prepared from (E)-7-methyl-6-tridecenal and the dianion of I, into a hydroxy function via [2,3]-sigmatropic rearrangement of the selenoxide. In the experiment, the researchers used many compounds, for example, 2-(4-Chlorobutyl)-1,3-dioxolane (cas: 118336-86-0COA of Formula: C7H13ClO2).
2-(4-Chlorobutyl)-1,3-dioxolane (cas: 118336-86-0) 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.COA of Formula: C7H13ClO2
Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem