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5751-32-6

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5751-32-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5751-32-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,5 and 1 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 5751-32:
(6*5)+(5*7)+(4*5)+(3*1)+(2*3)+(1*2)=96
96 % 10 = 6
So 5751-32-6 is a valid CAS Registry Number.

5751-32-6Downstream Products

5751-32-6Relevant articles and documents

Olefination with Sulfonyl Halides and Esters: Scope, Limitations, and Mechanistic Studies of the Hawkins Reaction

Górski, Bartosz,Talko, Alicja,Basak, Tymoteusz,Barbasiewicz, Micha?

, p. 1756 - 1759 (2017)

Carbanions of alkanesulfonyl halides and esters react with nonenolizable carbonyl compounds to give olefins. Mechanistic studies reveal that initial aldol-type addition of the carbanions is followed by cyclization-fragmentation to alkenes, and the leaving group on the sulfonyl moiety (RSO2X) controls carbanion stability and rate of the olefin formation.

S,O-ligand-promoted palladium-catalyzed C–H olefination of arenes with allylic substrates

Naksomboon, Kananat,álvarez-Casao, Yolanda,Uiterweerd, Michiel,Westerveld, Nick,Maciá, Beatriz,Fernández-Ibá?ez, M. ángeles

supporting information, p. 379 - 382 (2017/12/28)

An efficient catalytic system for the C–H olefination of arenes with different allylic substrates is reported. The catalytic system is based on Pd(OAc)2 and a readily accessible bidentate S,O-ligand. The methodology shows high activity with a wide range of arenes, including bulky and, electron-rich and -poor arenes. The applicability of this catalyst is demonstrated in the late-stage functionalization of the complex molecule O-methylestrone.

A palladium NNC-pincer complex: An efficient catalyst for allylic arylation at parts per billion levels

Hamasaka, Go,Sakurai, Fumie,Uozumi, Yasuhiro

supporting information, p. 3886 - 3888 (2015/03/04)

Allylic arylation of allylic acetates by sodium tetraarylborates in the presence of ppb to ppm (molar) loadings of a palladium NNC-pincer complex catalyst in methanol at 50°C gave the corresponding arylated products in excellent yields. Total turnover numbers of up to 500 000 000 and turnover frequencies of up to 11 250 000 h-1 were achieved.

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