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Table 4 Results of the PTML regression model

From: MATEO: intermolecular α-amidoalkylation theoretical enantioselectivity optimization. Online tool for selection and design of chiral catalysts and products

Model

Input Varsa

Symbol

Coeff.b

ΔeeR(%)qrb

S.E.c

td

p-levele

PMTL

ΔLoad(%)qr

ΔV3(cqi, crj)

a1

− 0.82

0.03243

− 25.3154

 < 0.005

 

ΔT(oC)qr

ΔV1(cqi, crj)

a2

− 0.34

0.00594

− 57.8960

 < 0.005

 

Δt(h)qr

ΔV2(cqi, crj)

a3

0.21

0.00476

44.4627

 < 0.005

 

α(Catq, Catr)Cuns

ΔD4(m3qi, m3rj)2

b1

− 174.37

2.67954

− 65.0741

 < 0.005

 

α(Prodq, Prodr)HetNoX

ΔD4(m5qi, m5rj)4

b2

− 1534.17

26.38185

− 58.1525

 < 0.005

 

EA(Prodq, Prodr)Csat

ΔD5(m5qi, m5rj)1

b3

− 215.98

3.38484

− 63.8086

 < 0.005

 

EA(Catq, Catr)HetNoX

ΔD5(m3qi, m3rj)4

b4

− 1747.12

26.48292

− 65.9715

 < 0.005

 

χ(Nucq, Nucr)Het

ΔD3(m2qi, m2rj)3

b5

− 42.49

1.33694

− 31.7788

 < 0.005

 

χ(Catq, Catr))HetNoX

ΔD3(m3qi, m3rj)4

b6

750.76

8.98832

83.5259

 < 0.005

 

V(Subq, Subr)Tot

ΔD2(m1qi, m1rj)5

b7

− 34.19

0.70023

− 48.8225

 < 0.005

 

Zv(Catq, Catr)Cuns

ΔD1(m3qi, m3rj)2

b8

22.04

1.16398

18.9356

 < 0.005

 

Zv(Solvq, Solvr)Cuns

ΔD1(m4qi, m4rj)2

b9

− 12.46

0.16653

− 74.8101

 < 0.005

 

Intercept

e0

− 0.91

0.18257

− 5.0065

 < 0.005

  1. aInput variables with coefficient bk are the values of shift (Δ) in q-reacvs. r-reac for different properties: α average atomic polarizability, EA average atomic Electro Affinity, χ average atomic Sanderson Electronegativity, Zv average atomic number
  2. bCoefficients of the variables in the model, the output variable is the Δ in enantiomeric excess ee(%)* of the q-reac with respect to the r-reac when both reactions have been carried out with(R)-catalyst
  3. cStandard error of the coefficients
  4. dStudent t-value
  5. ep-level of error