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1388753-70-5

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1388753-70-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1388753-70-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,8,7,5 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1388753-70:
(9*1)+(8*3)+(7*8)+(6*8)+(5*7)+(4*5)+(3*3)+(2*7)+(1*0)=215
215 % 10 = 5
So 1388753-70-5 is a valid CAS Registry Number.

1388753-70-5Downstream Products

1388753-70-5Relevant articles and documents

An electrophilic hypervalent iodine reagent for trifluoromethylthiolation

Shao, Xinxin,Wang, Xueqiang,Yang, Tao,Lu, Long,Shen, Qilong

, p. 3457 - 3460 (2013)

Sulfur and friends: A new electrophilic hypervalent iodine reagent 1 has been developed for direct trifluoromethylthiolation. A variety of nucleophiles, including β-ketoesters, aldehydes, amides, aryl or vinyl boronic acids, and alkynes, reacted with 1 under mild conditions to give the corresponding trifluoromethylthiolated compounds in good to excellent yields.

Rhodium(I)-Catalyzed Regioselective Azide-internal Alkynyl Trifluoromethyl Sulfide Cycloaddition and Azide-internal Thioalkyne Cycloaddition under Mild Conditions

Song, Wangze,Zheng, Nan,Li, Ming,He, Junnan,Li, Junhao,Dong, Kun,Ullah, Karim,Zheng, Yubin

supporting information, p. 469 - 475 (2019/01/04)

A regioselective method to access fully substituted 5-trifluoromethylthio-1,2,3-triazoles and 5-thio-1,2,3-triazoles from the internal alkynyl trifluoromethyl sulfides and internal thioalkynes by a rhodium(I)-catalyzed azide-alkyne cycloaddition (RhAAC) reaction under mild conditions has been developed. This approach features good compatibility with water and air, a broad substrate scope, good functional group tolerance, high yields and excellent regioselectivities. The high 1,5-regioselectivities were controlled by the strong coordination between the sulfur atom and the π-acidic rhodium. The advantages of this method further include its applicability to gram-scale preparation, the use of solid-phase synthesis technique, and the mutually orthogonal CuAAC-RhAAC reaction. (Figure presented.).

Expeditious trifluoromethylthiolation and trifluoromethylselenolation of alkynyl(phenyl)iodoniums by [XCF3]? (X = S, Se) anions

Fang, Wan-Yin,Dong, Tao,Han, Jia-Bin,Zha, Gao-Feng,Zhang, Cheng-Pan

supporting information, p. 11502 - 11509 (2016/12/16)

Trifluoromethylthiolation and trifluoromethylselenolation of alkynyl(phenyl)iodonium tosylates by [XCF3]? (X = S, Se) ions was accomplished in 5-10 minutes at room temperature under a N2 atmosphere and provided a variety of alkynyl trifluoromethyl sulfides and selenides in good yields. Compared to the known methods, this approach has several advantages such as short reaction times and metal- and additive-free conditions without needing excess [Me4N][XCF3] reagents. Moreover, the less efficient reactions of (phenylethynyl)benziodoxol(on)e with [Me4N][XCF3] under the standard conditions demonstrate that acyclic alkynyl(phenyl)iodoniums are more powerful alkynyl sources in the conversion. This protocol allows for a fast and convenient access to numerous alkynyl trifluoromethyl sulfides and selenides.

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