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187035-29-6

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187035-29-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187035-29-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,0,3 and 5 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 187035-29:
(8*1)+(7*8)+(6*7)+(5*0)+(4*3)+(3*5)+(2*2)+(1*9)=146
146 % 10 = 6
So 187035-29-6 is a valid CAS Registry Number.

187035-29-6Relevant articles and documents

Selective reduction of N-nitroso aza-aliphatic cyclic compounds to the corresponding N-amino products using zinc dust in CO2–H2O medium

Yang, Weiqing,Lu, Xiang,Zhou, Tingting,Cao, Yongjing,Zhang, Yuanyuan,Ma, Menglin

, p. 780 - 783 (2018/10/20)

[Figure not available: see fulltext.] A new method for reduction of N-nitroso aza-aliphatic cyclic compounds employing zinc in pressurized CO2–H2O medium has been developed. H2O and NH4Cl were used as hydrogen donors, and reduction was performed under environmentally benign conditions. The presented approach allowed to obtain the respective N-amino products selectively and in excellent yields (up to 97%).

(S)-(-)-1-amino-2-methoxymethylpyrrolidine (SAMP) and (R)-(+)-1-amino-2-methoxymethylpyrrolidine (RAMP), versatile chiral auxiliaries

Enders, Dieter,Fey, Peter,Kipphardt, Helmut

, p. 173 - 173 (2017/05/20)

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ASYMMETRIC MICHAEL ADDITIONS VIA SAMP-/RAMP-HYDRAZONES ANTI-DIASTEREO- AND ENANTIOSELECTIVE SYNTHESIS OF 3,4-DISUBSTITUTED 5-OXO-ALKANOATES

Enders, Dieter,Papadopoulos, Kyriakos,Rendenbach, Beatrice E.M.,Appel, Rolf,Knoch, Falk

, p. 3491 - 3494 (2007/10/02)

An efficient and highly anti-diastereo-(de=90-100percent) and enantioselective (ee=92-100percent) synthesis of 3,4-disubstituted 5-oxo-alkanoates 3 in good overall chemical yields is described.The procedure involves the asymmetric Michael addition of aldehydes or ketones to enoates via their lithiated SAMP-/RAMP-hydrazones.Both enantiomers are accessible at will.

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