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16180-99-7

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16180-99-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16180-99-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,1,8 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16180-99:
(7*1)+(6*6)+(5*1)+(4*8)+(3*0)+(2*9)+(1*9)=107
107 % 10 = 7
So 16180-99-7 is a valid CAS Registry Number.

16180-99-7Relevant articles and documents

Microwave-Assisted Synthesis of 2-Substituted 2-Thiazolines and 5,6-Dihydro-4 H -1,3-thiazines

Bisceglia, Juan A.,Kilimciler, Natalia B.,Mancinelli, Michele,Mollo, María C.,Orelli, Liliana R.

, p. 1666 - 1679 (2020/06/01)

An efficient and general method for the synthesis of 2-substituted thiazolines and 5,6-dihydro-4 H -1,3-thiazines is developed via microwave-assisted ring closure of ω-thioamidoalcohols promoted by ethyl polyphosphate (PPE). The cyclization reaction involves an S N 2-type mechanism and features the advantages of very short reaction times, high yields and a predictable stereochemical outcome. The acyclic precursors are prepared in high overall yields by an improved diacylation-thionation-saponification sequence from commercially available ω-amino alcohols. The whole process is metal-free and operationally simple.

Imidazole-catalyzed monoacylation of symmetrical diamines

Verma, Sanjeev K.,Acharya,Kaushik

body text, p. 4232 - 4235 (2010/11/04)

Figure Presented. An imidazole-catalyzed protocol for monoacylation of symmetrical diamines has been developed. The protocol gave selective monoacylation of aliphatic (cyclic and acyclic) primary and secondary diamines. In the reaction, imidazole acts as both catalyst and a leaving group. Different monoacylated piperazines and other diamines were synthesized at room temperature in an ethanol/water solvent system.

Kinetic resolution of vic-amino alcohols catalyzed by a chiral Cu(II) complex

Mitsuda, Masaru,Tanaka, Tomoaki,Tanaka, Toshimitsu,Demizu, Yosuke,Onomura, Osamu,Matsumura, Yoshihiro

, p. 8073 - 8077 (2007/10/03)

Kinetic resolution of N-benzoylated vic-amino alcohols was achieved by benzoylation in the presence of copper triflate and (R,R)-Ph-BOX as catalysts. The observed enantioselectivity was moderate to high. The method was applied to a kinetic resolution of r

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