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40027-96-1

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40027-96-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40027-96-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,0,2 and 7 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 40027-96:
(7*4)+(6*0)+(5*0)+(4*2)+(3*7)+(2*9)+(1*6)=81
81 % 10 = 1
So 40027-96-1 is a valid CAS Registry Number.

40027-96-1Downstream Products

40027-96-1Relevant articles and documents

Catalytic Asymmetric [4 + 1] Annulation of Sulfur Ylides with Copper-Allenylidene Intermediates

Wang, Qiang,Li, Tian-Ren,Lu, Liang-Qiu,Li, Miao-Miao,Zhang, Kai,Xiao, Wen-Jing

supporting information, p. 8360 - 8363 (2016/07/27)

The first copper-catalyzed asymmetric decarboxylative [4 + 1] cycloaddition of propargylic carbamates and sulfur ylides was successfully developed. This strategy led to a series of chiral indolines with synthetically flexible alkyne groups in good yields and with high enantio- and diastereoselectivities (up to 99% yield, 98% ee, and >95:5 dr). A possible mechanism and stereoinduction mode with copper-allenylidenes were proposed as the possible dipolar intermediate.

A CONVENIENT GENERAL ACCESS TO α-SULFENYLATED ACETOPHENONES AND ALKANONES

Ishibashi, Hiroyuki,Takamuro, Iwao,Mizukami, Yo-ichi,Irie, Maki,Ikeda, Masazumi

, p. 443 - 452 (2007/10/02)

Friedel-Crafts acylation of arenes with methylthio- (1) or phenylthio-acetyl chloride (2) provides ready access to α-methylthio- or α-phenylthio-substituted acetophenones.The acyl chlorides 1 and 2 reacted also with organoaluminium reagents to give α-sulfenylated alkanones.

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