regiospecificadj.

Brit.

/ˌriːdʒɪə(ʊ)spᵻˈsɪfɪk/, U.S.

/ˌridʒioʊspəˈsɪfɪk/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin regio , specific adj.

Etymology: < classical Latin regio region n. + specific adj. Compare regioselective adj.

Chemistry.

Of a reaction taking place at a particular site on a molecule: leading to predominant or exclusive formation of one of two or more possible isomeric products; characterized by or characteristic of such a reaction. Cf. regioselective adj., stereospecific adj.

ΘΚΠ

the world > matter > chemistry > chemical reactions or processes > [adjective] > of or relating to chemical reactions (general) > of or relating to regiospecificity

regiospecific1968

1968 A. Hassner & F. Boerwinkle in Jrnl. Amer. Chem. Soc. 90 217/1 In nitromethane–methylene chloride ionic addition of BrN₃ to styrene proceeds in a regiospecific manner.

1977 Jrnl. Organometallic Chem. 141 c30 The organic skeleton in this complex thus derives from the formal reductive coupling of two pyrylium moieties in a regiospecific, yet unsymmetrical fashion.

1991 N. J. Turro Mod. Molecular Photochem. xi. 466 The cycloaddition reaction from S₂ is stereospecific but not regiospecific.

2005 Proc. National Acad. Sci. U.S.A 102 8499/1 A cytochrome P450 enzyme..was purified to homogeneity from pig liver and shown to be a highly regiospecific and stereospecific enzyme.

Derivatives

ˌregiospeciˈficity n. the property of being regiospecific; the extent to which a reaction or process is regiospecific.

ΘΚΠ

the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions (general) > regiospecificity

regiospecificity1968

1968 A. Hassner in Jrnl. Org. Chem. 33 2684/2 We have proposed that the course of such reactions be referred to as regiospecific... Regiospecificity then refers to the directional preference of bond formation.

1978 Further Perspectives Org. Chem. (CIBA Symp.) 73 The regiospecificity of the formylation (90%) at the 6–position.

2005 Plant Cell 17 3141 The complex substrate specificity and regiospecificity underlying the glycosylation of plant natural products.

This entry has been updated (OED Third Edition, December 2009; most recently modified version published online March 2022).

单词	regiospecific
释义	regiospecificadj. Brit. /ˌriːdʒɪə(ʊ)spᵻˈsɪfɪk/, U.S. /ˌridʒioʊspəˈsɪfɪk/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin regio , specific adj. Etymology: < classical Latin regio region n. + specific adj. Compare regioselective adj. Chemistry. Of a reaction taking place at a particular site on a molecule: leading to predominant or exclusive formation of one of two or more possible isomeric products; characterized by or characteristic of such a reaction. Cf. regioselective adj., stereospecific adj. ΘΚΠ the world > matter > chemistry > chemical reactions or processes > [adjective] > of or relating to chemical reactions (general) > of or relating to regiospecificity regiospecific1968 1968 A. Hassner & F. Boerwinkle in Jrnl. Amer. Chem. Soc. 90 217/1 In nitromethane–methylene chloride ionic addition of BrN₃ to styrene proceeds in a regiospecific manner. 1977 Jrnl. Organometallic Chem. 141 c30 The organic skeleton in this complex thus derives from the formal reductive coupling of two pyrylium moieties in a regiospecific, yet unsymmetrical fashion. 1991 N. J. Turro Mod. Molecular Photochem. xi. 466 The cycloaddition reaction from S₂ is stereospecific but not regiospecific. 2005 Proc. National Acad. Sci. U.S.A 102 8499/1 A cytochrome P450 enzyme..was purified to homogeneity from pig liver and shown to be a highly regiospecific and stereospecific enzyme. Derivatives ˌregiospeciˈficity n. the property of being regiospecific; the extent to which a reaction or process is regiospecific. ΘΚΠ the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions (general) > regiospecificity regiospecificity1968 1968 A. Hassner in Jrnl. Org. Chem. 33 2684/2 We have proposed that the course of such reactions be referred to as regiospecific... Regiospecificity then refers to the directional preference of bond formation. 1978 Further Perspectives Org. Chem. (CIBA Symp.) 73 The regiospecificity of the formylation (90%) at the 6–position. 2005 Plant Cell 17 3141 The complex substrate specificity and regiospecificity underlying the glycosylation of plant natural products. This entry has been updated (OED Third Edition, December 2009; most recently modified version published online March 2022). < adj.1968
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