HCID 59318575, compound → HCID 131729205, compound

Participants

Reaction Steps

<2> The reaction described in <3> of Synthesis Example 1 was performed under the same conditions, except that the 9-anthracenecarbonyloxymethyl difluoromethanesulfonic acid sodium salt (3.82 g) produced in <1> of Synthesis Example 9 above was used instead of the benzoyloxymethyldifluorosulfonic acid sodium salt in the reaction with diphenylmethylphenylsulfonium trifluoromethanesulfonic acid sodium salt, and thus 3.86 g (yield 85.6%) of 9-anthracenecarboxylic acid 2,2-difluoro-2-sulfoethyl ester diphenylmethylphenylsulfonium salt as shown in the following reaction scheme 19 was obtained. The structure of the product was confirmed by 1H-NMR.

Provenance & Evidence