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67800-16-2

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67800-16-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67800-16-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,8,0 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 67800-16:
(7*6)+(6*7)+(5*8)+(4*0)+(3*0)+(2*1)+(1*6)=132
132 % 10 = 2
So 67800-16-2 is a valid CAS Registry Number.

67800-16-2Downstream Products

67800-16-2Relevant articles and documents

Arylboronic Acid Catalyzed Dehydrative Mono-/Dialkylation Reactions of β-Ketoacids and Alcohols

Feng, Juhua,Hu, Haipeng,Ni, Hailiang,Qiu, Yuqian,Wang, Cuilin,Wang, Guangtu,Wang, Hanguang,Wang, Wei,Wu, Xin,Yue, Guizhou,Zou, Ping

supporting information, p. 832 - 836 (2022/02/05)

The dehydrative mono-/dialkylation reactions of alcohols and β-ketoacids were realized under arylboronic acid catalysis, furnishing a series of β-aryl ketones and β-ketoesters in yields of 15–99%, with CO2 and H2O being the byproduct

An Atom-Economical Route to Substituted β-Arylethyl Ketones: Phosphomolybdic Acid-Catalyzed Carbohydroxylation of Terminal Alkynes in Organic Carbonate

Yang, Guo-Ping,Zhang, Nan,Ma, Nuan-Nuan,Yu, Bing,Hu, Chang-Wen

, p. 926 - 932 (2017/03/27)

A highly efficient and atom-economical route for the synthesis of substituted β-arylethyl ketones was developed by using cheap phosphomolybdic acid (H3PMo12O40) as catalyst and non-volatile propylene carbonate (PC) as green solvent via the carbohydroxylation of terminal alkynes with benzylic alcohols under mild conditions. Various functional groups on the benzylic alcohols and terminal alkynes were tolerated, giving the corresponding substituted β-arylethyl ketones as products in good to excellent yields (up to 95%). It is worth noting that a turnover number (TON) of up to 520 was achieved in the protocol. The mechanism investigation showed that PC might stabilize the heteropoly anion and the carbocation intermediate thus facilitating the carbohydroxylation reaction. (Figure presented.).

Palladium-catalyzed conjugate addition of arylsulfonyl hydrazides to α,β-unsaturated ketones

Chen, Wen,Chen, Hui,Xiao, Fuhong,Deng, Guo-Jun

supporting information, p. 4295 - 4298 (2013/08/23)

A palladium-catalyzed desulfitative-denitrogenative conjugate addition of arylsulfonyl hydrazides to α,β-unsaturated ketones is described. The reaction showed very good selectivity and tolerated a wide range of functionalities under an atmosphere of oxygen with or without the aid of a metal co-oxidant. The Royal Society of Chemistry 2013.

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