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16671-77-5

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16671-77-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16671-77-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,7 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 16671-77:
(7*1)+(6*6)+(5*6)+(4*7)+(3*1)+(2*7)+(1*7)=125
125 % 10 = 5
So 16671-77-5 is a valid CAS Registry Number.

16671-77-5Relevant articles and documents

Nitromethane as a cyanating reagent for the synthesis of thiocyanates

Wang, Zuo-Hui,Ji, Xiao-Ming,Hu, Mao-Lin,Tang, Ri-Yuan

, p. 5067 - 5070 (2015)

Nitromethane has been developed to be an effective cyanating reagent for the synthesis of thiocyanates. In the presence of iodine and base, a wide range of disulfides were reacted with nitromethane smoothly to give diverse thiocyanates in moderate to good yields.

Selectfluor-initiated cyanation of disulfides to thiocyanates

Zhou, Pengpeng,Chen, Chuan,Li, Shubai

, p. 376 - 380 (2020)

A Selectfluor-initiated cyanation of disulfides to thiocyanates has been developed. In this process, Selectfluor was employed as the oxidant and trimethylsilyl cyanide was used as the cyanation reagent. It provides an eco-friendly and simple way to synthesize the thiocyanates.

Transition-metal-free synthesis of thiocyanato- or nitro-arenes through diaryliodonium salts

Li, Xiao-Hua,Li, Liang-Gui,Mo, Xue-Ling,Mo, Dong-Liang

, p. 963 - 970 (2016/07/07)

A transition-metal-free approach to facile synthesis of thiocyanato- and nitro-arenes was developed from KSCN (potassiumthiocyanate) or NaNO2with diaryliodonium salts in good yields under mild conditions. The reaction was compatible with a variety of sensitive functional substituents such as halides and nitro and ester groups. The usefulness of arylation products has been realized. (Formula Present).

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