- PYRETHROID COMPOUND, AND HAIR RESTORER AND HAIR RESTORER COMPOSITION COMPRISING THE SAME
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PROBLEM TO BE SOLVED: To provide a pyrethroid compound having hair growth effect. SOLUTION: The present invention provides a pyrethroid compound represented by general formula (1) [in general formula (1), R1 is selected from a hydrogen atom, a halogen atom, an azido group, an alkoxy group having 1 to 4 carbon atoms, and an alkyl group having 1 to 4 carbon atoms, R2 is selected from a methyl group, an ethyl group and an isopropyl group, R3 is selected from -C≡N, -C≡CH, -C≡C-CH3 and -CH=CH2, and R4 is selected from a methyl group, a phenyl group, a 2-methoxy ethyl group, a methoxymethyl group, and a propargyl group]. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT
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Paragraph 0035; 0048; 0049
(2017/08/26)
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- Highly enantioselective direct alkylation of arylacetic acids with chiral lithium amides as traceless auxiliaries
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A direct, highly enantioselective alkylation of arylacetic acids via enediolates using a readily available chiral lithium amide as a stereodirecting reagent has been developed. This approach circumvents the traditional attachment and removal of chiral auxiliaries used currently for this type of transformation. The protocol is operationally simple, and the chiral reagent is readily recoverable.
- Stivala, Craig E.,Zakarian, Armen
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supporting information; experimental part
p. 11936 - 11939
(2011/09/19)
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- Stereoisomerization of Ketene Imines
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Barriers to racemization in solution of the ketene imines 1a - y and X-ray structures of the ketene imines 1s and z are described.Similar to allenes all ketene imines have dihedral angles of 90 deg between the C- and N-substituents.The barriers to racemization range from 30 to 63 kJmol-1 and are lowered by electron attracting substituents on C and N.The barriers of m- and p-substituted N-arylketene imines give a linear Hammett correlation with ?- constants.N-Arylketene imines racemize through inversion at nitrogen and simultaneous rotation of the aryl group around the N - aryl bond.
- Lambrecht, Johanna,Gambke, Brigitte,Seyerl, Joachim von,Huttner, Gottfried,Kollmannsberger-von Nell, Georg,et al.
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p. 3751 - 3771
(2007/10/02)
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- Synthesis of substituted phenylacetic acid
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A substituted acetonitrile such as α-isopropyl-p-chlorophenylacetonitrile is hydrolyzed using an acid to produce the corresponding substituted phenylacetic acid such as α-isopropyl-p-chlorophenylacetic acid in such a manner that, in a lot in any one hydro
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- Insecticidal esters of substituted furan methanol
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Substituted acetate compounds represented by the formula STR1 which are useful as pesticides and pesticidal composition containing the substituted acetate compounds as active ingredients, as well as processes for preparing the compounds and the compositio
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- Process for preparing phenyl-acetic acid esters
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A process for preparing a substituted phenyl-acetic acid ester of the formula (I), SPC1 wherein R1 is an ethyl group or an isopropyl group, R2 is a hydrogen atom, a C1 -C4 alkyl group, a methoxy group, a halogen atom or a methylenedioxy group, which comprises reacting a quaternary ammonium salt of the formula (III), SPC2 wherein X is a halogen atom, and A is an alkylamine, pyridine or an N-alkylaniline, with a carboxylic acid of the formula (II), SPC3 wherein R1 and R2 are each as defined above, its reactive derivative, or a mixture of the acid and its reactive derivative.
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