prochiraladj.

Brit.

/prəʊˈkʌɪrəl/,

/prəʊˈkʌɪrl̩/, U.S.

/proʊˈkaɪr(ə)l/

Origin: Formed within English, by derivation. Etymons: pro- prefix², chiral adj.

Etymology: < pro- prefix² + chiral adj.

Chemistry.

Designating a molecule which is not chiral but can become so by means of a simple reaction such as a substitution. Also: designating an atom or group at which such a reaction can produce a chiral structure.

ΚΠ

1966 K. Hanson in Jrnl. Amer. Chem. Soc. 87 2733 As D comes before E and F in the operation, it is convenient to apply the adjective prochiral to D.

1989 tr. C. Elschenbroich & A. Salzer Organometallics xv. 264 Prochiral diolefins form chiral complexes which can be resolved into enantiomers.

1995 R. S. Atkinson Stereoselective Synthesis i. 9 A prochiral double bond in an addition reaction is one in which one or two chiral sp³ centres are formed and the addition product itself is chiral.

Derivatives

prochiˈrality n.

ΚΠ

1966 K. Hanson in Jrnl. Amer. Chem. Soc. 87 2732 Before providing rules for examining molecular models it is desirable to introduce a new geometric concept, that of prochirality.

1988 P. W. Kuchel et al. Schaum's Outl. Theory & Probl. Biochem. xii. 353 In 1948 Alexander Ogston offered an explanation, called the three-point attachment proposal, that was to start the development of the discipline of prochirality.

1991 Jrnl. Amer. Chem. Soc. 113 4418/1 Prochirality could be determined for the β, γ, and δ protons of proline.

This is a new entry (OED Third Edition, June 2007; most recently modified version published online March 2022).

单词	prochiral
释义	prochiraladj. Brit. /prəʊˈkʌɪrəl/, /prəʊˈkʌɪrl̩/, U.S. /proʊˈkaɪr(ə)l/ Origin: Formed within English, by derivation. Etymons: pro- prefix², chiral adj. Etymology: < pro- prefix² + chiral adj. Chemistry. Designating a molecule which is not chiral but can become so by means of a simple reaction such as a substitution. Also: designating an atom or group at which such a reaction can produce a chiral structure. ΚΠ 1966 K. Hanson in Jrnl. Amer. Chem. Soc. 87 2733 As D comes before E and F in the operation, it is convenient to apply the adjective prochiral to D. 1989 tr. C. Elschenbroich & A. Salzer Organometallics xv. 264 Prochiral diolefins form chiral complexes which can be resolved into enantiomers. 1995 R. S. Atkinson Stereoselective Synthesis i. 9 A prochiral double bond in an addition reaction is one in which one or two chiral sp³ centres are formed and the addition product itself is chiral. Derivatives prochiˈrality n. ΚΠ 1966 K. Hanson in Jrnl. Amer. Chem. Soc. 87 2732 Before providing rules for examining molecular models it is desirable to introduce a new geometric concept, that of prochirality. 1988 P. W. Kuchel et al. Schaum's Outl. Theory & Probl. Biochem. xii. 353 In 1948 Alexander Ogston offered an explanation, called the three-point attachment proposal, that was to start the development of the discipline of prochirality. 1991 Jrnl. Amer. Chem. Soc. 113 4418/1 Prochirality could be determined for the β, γ, and δ protons of proline. This is a new entry (OED Third Edition, June 2007; most recently modified version published online March 2022). < adj.1966
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