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157474-64-1

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157474-64-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157474-64-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,4,7 and 4 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 157474-64:
(8*1)+(7*5)+(6*7)+(5*4)+(4*7)+(3*4)+(2*6)+(1*4)=161
161 % 10 = 1
So 157474-64-1 is a valid CAS Registry Number.

157474-64-1Upstream product

157474-64-1Downstream Products

157474-64-1Relevant articles and documents

Asymmetric total synthesis of a beer-aroma constituent based on enantioconvergent biocatalytic hydrolysis of trisubstituted epoxides

Steinreiber,Mayer,Faber

, p. 2035 - 2039 (2001)

A short asymmetric total synthesis of the plant constituent myrcenediol [(R)-1], and (S)-7,7-dimethyl-6,8-dioxabicyclo [3.2.1]octane (2), which is a volatile constituent of the aroma of beer was accomplished via a chemoenzymatic protocol. The key step consisted of a biocatalytic hydrolysis of trisubstituted epoxides bearing olefinic side chains which proceeded in an enantioconvergent fashion, i.e., a single enantiomeric vic-diol was obtained from the racemate in up to 91% ee and 92% isolated yield.

Oxidation of alkenes by oxodiperoxomolybdenum: Trialkyl(aryl)phosphine oxide complexes

Kiraz, Christine I. Altinis,Mora, Luis,Jimenez, Leslie S.

, p. 92 - 96 (2007/12/31)

Catalytic amounts of short-chain (2-4 carbons) trialkylphosphine oxide ligands and MoO5 have been shown to efficiently convert di- and higher substituted alkenes to the corresponding epoxides using a biphasic system with either 30% hydrogen peroxide or 70% TBHP acting as the stoichiometric oxidant. Georg Thieme Verlag Stuttgart.

Titanium-catalyzed asymmetric epoxidation of non-activated olefins with hydrogen peroxide

Sawada, Yuji,Matsumoto, Kazuhiro,Katsuki, Tsutomu

, p. 4559 - 4561 (2008/09/16)

A greener oxidation: A titanium(salalen) complex catalyzes the asymmetric epoxidation of aliphatic (non-activated) olefins using aqueous hydrogen peroxide as the oxidant. Reactions with aliphatic terminal and Z olefins furnish the corresponding epoxides in good yields with high enantioselectivities of up to 97% ee.

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