Stanetty, Peter et al. published their research in Archiv der Pharmazie (Weinheim, Germany) in 1984 | CAS: 3308-94-9

2-(3-Chloropropyl)-2-(4-fluorophenyl)-1,3-dioxolane (cas: 3308-94-9) 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. Dioxole functionalized metal-organic frameworks have also been recently reported.Electric Literature of C12H14ClFO2

Heterocyclic spiro compounds: spiro[benzo[b]thiophene-4(5H),3′-pyrrolidines] was written by Stanetty, Peter;Froehlich, Hannes;Sauter, Fritz. And the article was included in Archiv der Pharmazie (Weinheim, Germany) in 1984.Electric Literature of C12H14ClFO2 This article mentions the following:

The title compounds were prepared and their 1H and 13C NMR studied. Condensing benzothiophenone I (Z = O) with (NC)2CH2 gave dicyano compound I [Z = C(CN)2] which was treated with NaCN and the product tricyano compound hydrolyzed and decarboxylated to give diacid II. Cyclization of II with RNH2 [R = H, Me, (CH2)3NEt2] gave the spiropyrrolidines III. III (R = H) and Cl(CH2)nNMe2 (n = 2,3) gave III [R = (CH2)nNMe2]. Reduction of III with LiAlH4 gave IV. In the experiment, the researchers used many compounds, for example, 2-(3-Chloropropyl)-2-(4-fluorophenyl)-1,3-dioxolane (cas: 3308-94-9Electric Literature of C12H14ClFO2).

2-(3-Chloropropyl)-2-(4-fluorophenyl)-1,3-dioxolane (cas: 3308-94-9) 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. Dioxole functionalized metal-organic frameworks have also been recently reported.Electric Literature of C12H14ClFO2

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem