A new design for chiral induction: a highly regioselective differentiation between two identical groups in an acyclic compound having a prochiral center

1982 ◽  
Vol 104 (7) ◽  
pp. 2079-2081 ◽  
Author(s):  
Yoshimitsu Nagao ◽  
Takao Ikeda ◽  
Masahiro Yagi ◽  
Eiichi Fujita ◽  
Motoo Shiro
Keyword(s):  
Chiral Induction ◽  
Acyclic Compound

ChemInform Abstract: A NEW DESIGN FOR CHIRAL INDUCTION: A HIGHLY REGIOSELECTIVE DIFFERENTIATION BETWEEN TWO IDENTICAL GROUPS IN AN ACYCLIC COMPOUND HAVING A PROCHIRAL CENTER

1982 ◽  
Vol 13 (31) ◽  
Author(s):  
Y. NAGAO ◽  
T. IKEDA ◽  
M. YAGI ◽  
E. FUJITA ◽  
M. SHIRO
Keyword(s):  
Chiral Induction ◽  
Acyclic Compound

scholarly journals Asymmetric Catalysis with MOFs Prepared via Chiral Induction Effect

Synfacts ◽  
2010 ◽  
Vol 2011 (01) ◽  
pp. 0105-0105
Author(s):  
C. Duan ◽  
D. Dang ◽  
P. Wu ◽  
C. He ◽  
Z. Xie
Keyword(s):  
Asymmetric Catalysis ◽  
Induction Effect ◽  
Chiral Induction

A new nonenzymatic chiral induction into prochiral meso compounds

Tetrahedron ◽  
1984 ◽  
Vol 40 (8) ◽  
pp. 1215-1223 ◽  
Author(s):  
Yoshimitsu nagao ◽  
Takemsa inoue ◽  
Eiichi fujita ◽  
Shunji Terada ◽  
Motoo shiro
Keyword(s):  
Chiral Induction

An Investigation of the Inherent Chiral Induction Ability of Axially Chiral 1,1′-Binaphthalene Framework in the Prelog’s Atrolactic Acid Synthesis

1992 ◽  
Vol 21 (5) ◽  
pp. 807-808 ◽  
Author(s):  
Yasufumi Tamai ◽  
Tomoyuki Nakano ◽  
Sotaro Miyano
Keyword(s):  
Acid Synthesis ◽  
Chiral Induction ◽  
Axially Chiral

Intermolecular interactions and chiral induction in nematic liquid crystal phase by camphorsubstituted 2,3-dicyanopyrazine

2017 ◽  
Vol 244 ◽  
pp. 398-404 ◽  
Author(s):  
V.A. Burmistrov ◽  
I.V. Novikov ◽  
V.V. Aleksandriiskii ◽  
M.K. Islyaikin ◽  
O.I. Koifman
Keyword(s):  
Liquid Crystal ◽  
Intermolecular Interactions ◽  
Nematic Liquid Crystal ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Chiral Induction

cis-2,3-Di-tert-butylcyclopropanones

1997 ◽  
Vol 75 (7) ◽  
pp. 1030-1040 ◽  
Author(s):  
T.S. Sorensen ◽  
F. Sun
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Carbonyl Group ◽  
Trans Isomer ◽  
Carbonyl Oxygen ◽  
Highly Strained ◽  
Strained Alkenes ◽  
Acyclic Compound

The preparation of the strained cis-2,3-di-tert-butylcyclopropanone 2 from the acyclic compound, α,α′-dibromodineopentyl ketone 1, using a previously reported methodology, is dramatic evidence of both the existence of oxyallyl intermediates in the mechanism of this reaction, and of the integrity with which oxyallyls ring-close to cyclopropanones by a disrotatory route. Because of the bulky cis substituents, cyclopropanone 2 exhibits a number of unusual spectroscopic features (as compared to the trans isomer 5). With the aid of ab initio calculations on 2 and 5, it can be shown that the C2—C3 bond in 2 interacts with the carbonyl π-orbitals, thus causing the carbonyl oxygen to bend 12° out of the plane; this interaction is absent in 5 and the latter has a planar carbonyl group. As with other cyclopropanones, 2 can be photochemically decarbonylated. This process itself appears to be stereospecific even though highly strained alkenes are produced. Cyclopropanone 2 is thermally rearranged to the trans isomer 5 and the kinetics for this are reported; our favoured mechanism involves oxyallyl intermediates. Other reactions of 2 also appear to proceed through these oxyallyl species; for example, alcohols initially add to 2 to give α-alkoxy ends, solutions of 2 enter into very facile diene cycloadditions, and the dimerization of neat 2 also appears to involve these oxyallyl species. Keywords: cyclopropanones, oxyallyl, stereomutation, stereospecific decarbonylation, nonplanar carbonyl.

Chiral Induction by Cinchona Alkaloids in the Rhodium(II) Catalyzed O–H Insertion Reaction

2010 ◽  
Vol 58 (6) ◽  
pp. 872-874 ◽  
Author(s):  
Hiroaki Saito ◽  
Ryo Iwai ◽  
Taketo Uchiyama ◽  
Muneharu Miyake ◽  
Shinichi Miyairi
Keyword(s):  
Cinchona Alkaloids ◽  
Insertion Reaction ◽  
Chiral Induction

Chiral induction based on carbohydrate ligands in olefin platinum(0) complexes

2002 ◽  
Vol 337 (7) ◽  
pp. 651-656 ◽  
Author(s):  
Cristina De Castro ◽  
Antonio Molinaro ◽  
Federico Giordano ◽  
Ida Orabona ◽  
Francesco Ruffo
Keyword(s):  
Chiral Induction ◽  
Carbohydrate Ligands

Taking chiral induction into the nanometre regime: chiral teleinduction in the synthesis of poly(isocyanide)s

2004 ◽  
Vol 14 (6) ◽  
pp. 256-257 ◽  
Author(s):  
David B. Amabilino ◽  
José-Luis Serrano ◽  
Teresa Sierra ◽  
Jaume Veciana
Keyword(s):  
Chiral Induction
Sign in / Sign up

Export Citation Format

Share Document