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93021-70-6

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93021-70-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93021-70-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,0,2 and 1 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 93021-70:
(7*9)+(6*3)+(5*0)+(4*2)+(3*1)+(2*7)+(1*0)=106
106 % 10 = 6
So 93021-70-6 is a valid CAS Registry Number.

93021-70-6Relevant articles and documents

Synthesis and reactivity of functionalized alkynyl titanium derivatives

Morlender-Vais, Natalia,Kaftanov, Julia,Marek, Ilan

, p. 917 - 920 (2000)

The in situ formation of Ti(II) and subsequent reaction with halogeno alkynes offer a new route to the preparation of functionalized alkynyl titanium derivatives, which can then react chemoselectively with functionalized electrophiles.

Organoborane-catalyzed selective 1,2-reduction of alkynones with hydride transfer: Synthesis of benzyl alkynes

Li, Huilin,Man, Qinghong,Ren, Yangqing,She, Xuegong,Wang, Lei,Yang, Mingyu,Yang, Zhigang,Zhai, Lele

supporting information, (2022/01/28)

Benzyl alkynes are important organic building blocks in organic synthesis. We report herein a B(C6F5)3-catalyzed site-selective 1,2-reduction of readily available alkynones to access benzyl alkyne derivatives. Under the de

Straightforward Stereoselective Synthesis of Seven-Membered Oxa-Bridged Rings through in Situ Generated Cycloheptenol Derivatives

Wang, Mengdan,Yin, Liqiang,Cheng, Lu,Yang, Yajie,Li, Yanzhong

, p. 12956 - 12963 (2021/09/13)

An iodine-mediated stereoselective synthesis of seven-membered oxa-bridged rings via in situ generated cycloheptenols was reported. This process was realized through the combination of C-C σ-bond cleavage and C-O bond-forming reactions in a one-pot fashion from simple and easily accessible raw materials. The formation of carbon radicals initiated by I2 was the key to the reaction.

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