Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1981-04-27
1982-08-03
Milestone, Norma S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
2602391, C07D31746, C07D31740
Patent
active
043426930
ABSTRACT:
A 1,3-dioxolen-2-one derivative of the general formula ##STR1## wherein R.sub.1 represents a hydrogen atom, a methyl group, or an aryl group, R.sub.2 represents a hydrogen atom, or may be taken together with R.sub.1 to form a divalent carbon chain residue, and x represents a halogen atom.
The above compounds can be prepared by reacting a compound of the general formula ##STR2## with a halogenating agent, and are useful as protective group-introducing reagents for introducing protective groups into reagents in various chemical reactions, or as modifiers for prodrug preparation in medicine.
REFERENCES:
patent: 3020290 (1962-02-01), Moss
H. D. Scharf et al, Liebigs Ann. Chem. (1977) pp. 27-32.
Herbert O. House, Modern Synthetic Reactions, 2nd ed. (1971) pp. 478-487.
Liebigs Annalen der Chemie, vol. 764, pp. 116-124 (1972).
Tetrahedron Letters, No. 17, pp. 1701-1704 (1972).
Bulletin of the Chemical Society of Japan, vol. 45, pp. 2797-2801 (1972).
Transactions, Ill. State Acad. Sci., vol. 67, No. 1, pp. 139-145 (1974).
Ikeda Shoji
Sakamoto Fumio
Tsukamoto Goro
Utsumi Isamu
Kanebo Ltd.
Milestone Norma S.
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