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ABSTRACT:
SUBMITTER: Green JP
PROVIDER: S-EPMC7684575 | biostudies-literature | 2020 Nov
REPOSITORIES: biostudies-literature
Green Joshua P JP Morales Salazar Daniel D Gupta Arvind Kumar AK Orthaber Andreas A
The Journal of organic chemistry 20200904 22
The substitution of 2,7-dibromo-9-fluorenyl phosphaalkenes with heteroaromatic substituents (bithiophene, benzothiophene, pyridine) offers access to interesting push-pull dye molecules. Steric shielding due to the bulky P-substituent gives marked different reactivities at the 2- and 7-positions, allowing the synthesis of mixed/asymmetric derivatives. Further functionalization via gold(I) coordination was demonstrated and increased the acceptor character, concomitant with a red-shifted absorption ...[more]