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28370-55-0

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28370-55-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28370-55-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,3,7 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 28370-55:
(7*2)+(6*8)+(5*3)+(4*7)+(3*0)+(2*5)+(1*5)=120
120 % 10 = 0
So 28370-55-0 is a valid CAS Registry Number.

28370-55-0Relevant articles and documents

Pd-Catalyzed aerobic oxidation of the sesquiterpene isolongifolene: A green and heterogeneous process

Nunes de Melo, Carla,Robles-Azocar, Patrícia Alejandra,Rodrigues, Yuri Blanc

, (2020/12/25)

The oxidation of the sesquiterpene isolongifolene, catalyzed by Pd/SiO2 prepared through a conventional sol–gel method, resulted mainly in isolongifolen-9-one (65% selectivity), a compound which occupies a prominent place in perfume industry. In addition to the product obtained from the allylic oxidation of isolongifolene, the formation of other oxygenated products with potential industrial application (both total yield of 94%) was also observed. The system can be used for oxidation of other sesquiterpene, valencene. In this case, it was possible to obtain oxygenated products with up to 66% yield. The reactions occurred under mild conditions in a green and heterogeneous oxidation catalytic system. Pd (II) was used as a solo catalyst in the absence of co-oxidants. The catalyst can be easily recovered and re-used maintaining activity and selectivity.

Synthesis in fluorous phase: A convenient synthesis of isolongifolene epoxide and its rearrangement to ketone

Ravikumar,Bégué, Jean-Pierre,Bonnet-Delpon, Danièle,Ourévitch, Michèle

, p. 51 - 53 (2007/10/03)

Aerobic epoxidation of isolongifolene 1 with pivalaldehyde/oxygen in perfluoro-2-butyltetrahydrofuran (FC-75) in the presence of Mn(OAc)3·2H2O as catalyst yielded isolongifolene-epoxide 3 in good yield. The rearrangement of isolongifolene-β-epoxide to ketone 4 was achieved.

Chromic Acid Oxidation of Some Oxiranes

Krishna, R. R.,Chawla, H. P. S.,Dev, Sukh

, p. 1190 - 1196 (2007/10/02)

Oxiranes derived from some alkenes, with olefinic bonds present in different stereoelectronic environments, have been treated with Cr(VI)-reagents.The major products obtained have been identified and their formation rationalized.In some cases, the method becomes synthetically useful for C-C bond cleavage.

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