Use of Tetraethyl Dimethylaminomethylenediphosphonate in the Synthesis of Benzothiophene-2-acetic Acid and Other Carboxylic Acids

References

• Gross , H. and Costisella , B. 1968 . Angew. Chem., Int. Ed. Engl. , 7 : 391
   Google Scholar
• Martin , S. F. 1979 . Synthesis , : 633 For an excellent review of other methods of effecting this type of conversion, see
   Google Scholar
• Blicke , F. F. and Sheets , D. G. 1949 . J. Am. Chem. Soc. , 71 : 2856
   Web of Science ®Google Scholar
• 1948 . J. Am. Chem. Soc. , 70 : 3768
   PubMed Web of Science ®Google Scholar
• Kefford , N. P. and Kelso , J. M. 1957 . Aust. J. Biol. Sci. , 10 : 80
   Google Scholar
• Shirley , D. A. and Darzig , M. J. 1952 . J. Am. Chem. Soc. , 74 : 2935 Prepared in 79% yield by reaction of 2-lithiobenzothiophene with dimethylformamide at 25° in ether. For a similar preparation see
   Web of Science ®Google Scholar
• Stadler , P. A. 1978 . Helv. Chim. Acta , 61 : 1675
   Web of Science ®Google Scholar
• Gross , H. , Costisella , B. , Gnauk , T. and Brennecke , L. 1976 . J. Prakt. Chem. , 318 : 116
   Google Scholar
• Campos , O. and Cook , J. M. 1977 . J. Heterocycl. Chem. , 14 : 711
   Google Scholar