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39178-64-8

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39178-64-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39178-64-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,1,7 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 39178-64:
(7*3)+(6*9)+(5*1)+(4*7)+(3*8)+(2*6)+(1*4)=148
148 % 10 = 8
So 39178-64-8 is a valid CAS Registry Number.
InChI:InChI=1/C8H13IO/c1-2-3-4-5-8(10)6-7-9/h6-7H,2-5H2,1H3/b7-6+

39178-64-8Relevant articles and documents

Stereoselective preparation of functionalized acyclic alkenylmagnesium reagents using i-PrMgCl-LiCl

Ren, Hongjun,Krasovskiy, Arkady,Knochel, Paul

, p. 4215 - 4217 (2007/10/03)

(Chemical Equation Presented) Acyclic functionalized alkenyl iodides are converted with high stereoselectivity to the corresponding functionalized alkenylmagnesium derivatives by the reaction with i-PrMgCl-LiCl between -40 and -20°C. Functional groups such as a nitrile, chloride, iodide, and ester are readily tolerated. The conversion of an alkenyl iodide bearing a keto group to the corresponding silylated cyanohydrin allows preparation of the corresponding Grignard reagent affording, after acylation and deprotection, unsaturated 1,4-diketones.

ALDOL REACTION OF ALLENOLATES GENERATED VIA 1,4-ADDITION OF IODIDE ANION OR ITS EQUIVALENT TO α,β-ACETYLENIC KETONES

Taniguchi, Mikio,Hino, Tohru,Kishi, Yoshito

, p. 4767 - 4770 (2007/10/02)

TMSI, Et2AlI, and (n-Bu)4NI/TiCl4 smoothly added to α,β-acetylenic ketones in a 1,4-fashion to yield allenolates 2, which reacted with aldehydes providing aldol adducts in good overall yield.A high Z-stereoselectivity was achieved by use of (n-Bu)4NI/TiCl4 at -78 deg C, while a high E-stereoselectivity occured at 0 deg C.

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