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1669-54-1

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1669-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1669-54-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,6 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1669-54:
(6*1)+(5*6)+(4*6)+(3*9)+(2*5)+(1*4)=101
101 % 10 = 1
So 1669-54-1 is a valid CAS Registry Number.

1669-54-1Relevant articles and documents

Palladium-Catalyzed Synthesis of α-Methyl Ketones from Allylic Alcohols and Methanol

Biswal, Priyabrata,Samser, Shaikh,Meher, Sushanta Kumar,Chandrasekhar, Vadapalli,Venkatasubbaiah, Krishnan

, p. 413 - 419 (2021/11/01)

One-pot synthesis of α-methyl ketones starting from 1,3-diaryl propenols or 1-aryl propenols and methanol as a C1 source is demonstrated. This one-pot isomerization-methylation is catalyzed by commercially available Pd(OAc)2 with H2O as the only by-product. Mechanistic studies and deuterium labelling experiments indicate the involvement of isomerization of allyl alcohol followed by methylation through a hydrogen-borrowing pathway in these isomerization-methylation reactions.

Potassium Base-Promoted Diastereoselective Synthesis of 1,3-Diols from Allylic Alcohols and Aldehydes through a Tandem Allylic-Isomerization/Aldol–Tishchenko Reaction

Sai, Masahiro

, p. 4053 - 4056 (2021/10/25)

This study reports the first base-promoted aldol–Tishchenko reactions of allylic alcohols with aldehydes initiated by allylic isomerization. The reaction enables the diastereoselective synthesis of a variety of 1,3-diols with three contiguous stereogenic centers. Unlike commonly reported systems, our method allows the use of readily available allylic alcohols as nucleophiles instead of enolizable aldehydes and ketones.

Bi(OTf)3 catalyzed disproportionation reaction of cinnamyl alcohols

Chan, Chieh-Kai,Tsai, Yu-Lin,Chang, Meng-Yang

, p. 3368 - 3376 (2017/05/22)

Bi(OTf)3 catalyzed disproportionation reaction of cinnamyl alcohols provides chalcones and benzyl styrenes. The use of various metal triflates is investigated herein for facile and efficient redox transformation. A plausible mechanism has been proposed.

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