REFERENCES
- Schmidt , A. H. and Ried , W. 1978 . Synthesis , : 1 For leading reviews on the synthesis of squaric acid and derivatives see:
- Schmidt , A. H. and Ried , W. 1978 . Synthesis , : 869
- Moore , H. W. and Yerxa , B. R. 1995 . Adv. in Strain in Org. Chem. , Vol 4 : 81 – 161 .
- Cohen , S. and Cohen , S. G. 1966 . J. Am. Chem. Soc. , 88 : 1533
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- CautionOne should be very careful when preparing dialkylsquarates since many members are know to be powerful skin irritants and sensitizes.